Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 11 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,766exploited flaws on CISA’s list
35added in the last 30 days
570new WordPress flaws this week
391,310entries in the database

38,299 results · page 22 of 766

  • Oct 10, 2026Unauthenticated PHP Object Injection in Jacqueline <= 2.22 versions.CVE-2026-78531 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Jacqueline <= 2.22 versions.

    Affected
    up to 2.22
    What to do
    Affects up to 2.22. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Alliance <= 3.11 versions.CVE-2026-78529 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Alliance <= 3.11 versions.

    Affected
    up to 3.11
    What to do
    Affects up to 3.11. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Kicker <= 2.2.1 versions.CVE-2026-66569 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Kicker <= 2.2.1 versions.

    Affected
    up to 2.2.1
    What to do
    Affects up to 2.2.1. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Original <= 1.9.0 versions.CVE-2026-66568 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Original <= 1.9.0 versions.

    Affected
    up to 1.9.0
    What to do
    Affects up to 1.9.0. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Anesta <= 1.5.3 versions.CVE-2026-66567 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Anesta <= 1.5.3 versions.

    Affected
    up to 1.5.3
    What to do
    Affects up to 1.5.3. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in FC United <= 1.1.1 versions.CVE-2026-66565 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in FC United <= 1.1.1 versions.

    Affected
    up to 1.1.1
    What to do
    Affects up to 1.1.1. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in ShiftCV <= 3.0.14 versions.CVE-2026-66564 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in ShiftCV <= 3.0.14 versions.

    Affected
    up to 3.0.14
    What to do
    Affects up to 3.0.14. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Windsor <= 2.10 versions.CVE-2026-66563 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Windsor <= 2.10 versions.

    Affected
    up to 2.10
    What to do
    Affects up to 2.10. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Education Center <= 3.6.12 versions.CVE-2026-66483 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Education Center <= 3.6.12 versions.

    Affected
    up to 3.6.12
    What to do
    Affects up to 3.6.12. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Drone Media <= 2.2.0 versions.CVE-2026-66482 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Drone Media <= 2.2.0 versions.

    Affected
    up to 2.2.0
    What to do
    Affects up to 2.2.0. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Contributor Arbitrary File Upload in Creator LMS <= 1.2.21 versions.CVE-2026-62129 · WordPress plugins & themes · reported by PatchstackCritical 9.9

    Contributor Arbitrary File Upload in Creator LMS <= 1.2.21 versions.

    Affected
    up to 1.2.21
    What to do
    Affects up to 1.2.21. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Asia Garden <= 1.3.1 versions.CVE-2026-62125 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Asia Garden <= 1.3.1 versions.

    Affected
    up to 1.3.1
    What to do
    Affects up to 1.3.1. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in N7 | Golf Club Sports & Events <= 2.21 versions.CVE-2026-62124 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in N7 | Golf Club Sports & Events <= 2.21 versions.

    Affected
    up to 2.21
    What to do
    Affects up to 2.21. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Invetex <= 2.18 versions.CVE-2026-62123 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Invetex <= 2.18 versions.

    Affected
    up to 2.18
    What to do
    Affects up to 2.18. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Law Office <= 3.20 versions.CVE-2026-62120 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Law Office <= 3.20 versions.

    Affected
    up to 3.20
    What to do
    Affects up to 3.20. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in WineShop <= 3.20 versions.CVE-2026-62090 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in WineShop <= 3.20 versions.

    Affected
    up to 3.20
    What to do
    Affects up to 3.20. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Equadio <= 1.1.4 versions.CVE-2026-62087 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Equadio <= 1.1.4 versions.

    Affected
    up to 1.1.4
    What to do
    Affects up to 1.1.4. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Juno <= 2.25 versions.CVE-2026-62086 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Juno <= 2.25 versions.

    Affected
    up to 2.25
    What to do
    Affects up to 2.25. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Avala <= 1.1.4 versions.CVE-2026-62077 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Avala <= 1.1.4 versions.

    Affected
    up to 1.1.4
    What to do
    Affects up to 1.1.4. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Kalles <= 1.1.7.1 versions.CVE-2026-62076 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Kalles <= 1.1.7.1 versions.

    Affected
    up to 1.1.7.1
    What to do
    Affects up to 1.1.7.1. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Yacht Rental <= 2.6 versions.CVE-2026-62054 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Yacht Rental <= 2.6 versions.

    Affected
    up to 2.6
    What to do
    Affects up to 2.6. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Wine House <= 3.20 versions.CVE-2026-62053 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Wine House <= 3.20 versions.

    Affected
    up to 3.20
    What to do
    Affects up to 3.20. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Tipsy <= 1.6 versions.CVE-2026-62052 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Tipsy <= 1.6 versions.

    Affected
    up to 1.6
    What to do
    Affects up to 1.6. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Stargaze <= 1.10 versions.CVE-2026-62051 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Stargaze <= 1.10 versions.

    Affected
    up to 1.10
    What to do
    Affects up to 1.10. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Splendour <= 1.23 versions.CVE-2026-62050 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Splendour <= 1.23 versions.

    Affected
    up to 1.23
    What to do
    Affects up to 1.23. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated Local File Inclusion in DirectoryPress <= 3.6.27 versions.CVE-2026-62032 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated Local File Inclusion in DirectoryPress <= 3.6.27 versions.

    Affected
    up to 3.6.27
    What to do
    Affects up to 3.6.27. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated SQL Injection in uListing <= 2.2.0 versions.CVE-2026-62031 · WordPress plugins & themes · reported by PatchstackCritical 9.3

    Unauthenticated SQL Injection in uListing <= 2.2.0 versions.

    Affected
    up to 2.2.0
    What to do
    Affects up to 2.2.0. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated Arbitrary File Upload in Tailored Tools <= 3.0.3 versions.CVE-2026-62025 · WordPress plugins & themes · reported by PatchstackCritical 9

    Unauthenticated Arbitrary File Upload in Tailored Tools <= 3.0.3 versions.

    Affected
    up to 3.0.3
    What to do
    Affects up to 3.0.3. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Subscriber Arbitrary File Upload in CodeBard Help Desk <= 1.1.2 versions.CVE-2026-62024 · WordPress plugins & themes · reported by PatchstackCritical 9.9

    Subscriber Arbitrary File Upload in CodeBard Help Desk <= 1.1.2 versions.

    Affected
    up to 1.1.2
    What to do
    Affects up to 1.1.2. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated Privilege Escalation in Tonda Membership <= 1.0.1 versions.CVE-2026-62022 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated Privilege Escalation in Tonda Membership <= 1.0.1 versions.

    Affected
    up to 1.0.1
    What to do
    Affects up to 1.0.1. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in CleanSkin <= 1.5.0 versions.CVE-2026-42723 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in CleanSkin <= 1.5.0 versions.

    Affected
    up to 1.5.0
    What to do
    Affects up to 1.5.0. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Subscriber PHP Object Injection in Dynamic User Directory <= 2.4 versions.CVE-2026-42719 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Subscriber PHP Object Injection in Dynamic User Directory <= 2.4 versions.

    Affected
    up to 2.4
    What to do
    Affects up to 2.4. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Booster for WooCommerce <= 8.4.0 versions.CVE-2026-42718 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Booster for WooCommerce <= 8.4.0 versions.

    Affected
    up to 8.4.0
    What to do
    Affects up to 8.4.0. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Unauthenticated PHP Object Injection in Payever - WooCommerce Gateway <= 4.8.2 versions.CVE-2026-42716 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Payever - WooCommerce Gateway <= 4.8.2 versions.

    Affected
    up to 4.8.2
    What to do
    Affects up to 4.8.2. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026SiteVault – Backup, Restore, Migration & Cloning: Improper Control of Generation of Code ('Code Injection')CVE-2026-42696 · WordPress plugins & themes · reported by PatchstackCritical 10

    Improper Control of Generation of Code ('Code Injection') vulnerability in Royal Plugins SiteVault – Backup, Restore, Migration & Cloning sitevault-backup-restore-migration allows Remote Code Inclusion.This issue affects SiteVault – Backup, Restore, Migration & Cloning: from n/a through 1.5.19.

    Product
    SiteVault – Backup, Restore, Migration & Cloning
    Affected
    up to 1.5.19
    What to do
    Affects up to 1.5.19. Update SiteVault – Backup, Restore, Migration & Cloning to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Subscriber SQL Injection in ELEX WooCommerce Advanced Bulk Edit Products, Prices & Attributes <= 1.5.3 versions.CVE-2026-40800 · WordPress plugins & themes · reported by PatchstackCritical 9.3

    Subscriber SQL Injection in ELEX WooCommerce Advanced Bulk Edit Products, Prices & Attributes <= 1.5.3 versions.

    Affected
    up to 1.5.3
    What to do
    Affects up to 1.5.3. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Subscriber Privilege Escalation in AIWU <= 1.5.9 versions.CVE-2026-39801 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Subscriber Privilege Escalation in AIWU <= 1.5.9 versions.

    Affected
    up to 1.5.9
    What to do
    Affects up to 1.5.9. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Floci 1.1.0 before 2.2.0 contains a code injection vulnerability in VtlTemplateEngine that allows unauthenticated attackers to execute commands via unrestrictedCVE-2026-108598 · Other software · floci-io · reported by VulnCheckCritical 9.3

    Floci 1.1.0 before 2.2.0 contains a code injection vulnerability in VtlTemplateEngine that allows unauthenticated attackers to execute commands via unrestricted Velocity mapping templates. Attackers can create a REST API with a MOCK integration whose template uses $util reflection to reach Runtime or ProcessBuilder, executing OS commands in the Floci JVM.

    Product
    floci
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 10, 2026miniorange otp verification: Incorrect Privilege AssignmentCVE-2026-106610 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Incorrect Privilege Assignment vulnerability in miniOrange miniorange otp verification miniorange-otp-verification allows Privilege Escalation.This issue affects miniorange otp verification: from n/a through 5.5.7.

    Product
    miniorange otp verification
    Affected
    up to 5.5.7
    What to do
    Affects up to 5.5.7. Update miniorange otp verification to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026rtMedia for WordPress, BuddyPress and bbPress: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')CVE-2026-105892 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in rtCamp Inc. rtMedia for WordPress, BuddyPress and bbPress buddypress-media allows Path Traversal.This issue affects rtMedia for WordPress, BuddyPress and bbPress: from n/a through 4.7.13.

    Product
    rtMedia for WordPress, BuddyPress and bbPress
    Affected
    up to 4.7.13
    What to do
    Affects up to 4.7.13. Update rtMedia for WordPress, BuddyPress and bbPress to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Tickera: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')CVE-2026-105889 · WordPress plugins & themes · reported by PatchstackCritical 9.3

    Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Tickera Tickera tickera-event-ticketing-system allows Blind SQL Injection.This issue affects Tickera: from n/a through 3.6.0.6.

    Product
    Tickera
    Affected
    up to 3.6.0.6
    What to do
    Affects up to 3.6.0.6. Update Tickera to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026AFFI – Affiliate Marketing for WooCommerce: Deserialization of Untrusted DataCVE-2026-104398 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Deserialization of Untrusted Data vulnerability in VillaTheme AFFI – Affiliate Marketing for WooCommerce affi-affiliate-marketing-for-woo allows Object Injection.This issue affects AFFI – Affiliate Marketing for WooCommerce: from n/a through 1.0.10.

    Product
    AFFI – Affiliate Marketing for WooCommerce
    Affected
    up to 1.0.10
    What to do
    Affects up to 1.0.10. Update AFFI – Affiliate Marketing for WooCommerce to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026openapi-typescript-codegen through 0.31.0 contains a code injection vulnerability that allows attackers controlling an OpenAPI document to inject JavaScript by CVE-2026-108551 · Other software · ferdikoomen · reported by VulnCheckCritical 9.3

    openapi-typescript-codegen through 0.31.0 contains a code injection vulnerability that allows attackers controlling an OpenAPI document to inject JavaScript by supplying unescaped values interpolated into single-quoted string literals. Attackers can embed a single quote in path keys, parameter names, servers[0].url, or info.version to execute arbitrary JavaScript when generated clients are imported or service methods called.

    Product
    openapi-typescript-codegen
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 10, 2026cc-connect through 1.5.0 contains a missing authentication vulnerability in the MAX platform adapter webhook mode in platform/max/max.go that accepts unauthentiCVE-2026-108549 · Other software · chenhg5 · reported by VulnCheckCritical 9.2

    cc-connect through 1.5.0 contains a missing authentication vulnerability in the MAX platform adapter webhook mode in platform/max/max.go that accepts unauthenticated updates when no webhook_secret is configured. Remote attackers reaching the webhook listener on port 8080 can forge updates with an allowed or admin user_id to run privileged commands like /shell on the host.

    Product
    cc-connect
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 10, 2026ExtUtils::Typemaps::STL::String versions before 1.06 for Perl T_STD_STRING typemap may read the SV length before stringifying the argument.CVE-2026-107373 · Other software · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eCritical 9.1

    ExtUtils::Typemaps::STL::String versions before 1.06 for Perl T_STD_STRING typemap may read the SV length before stringifying the argument. The typemap uses $var = std::string( SvPV_nolen($arg), SvCUR($arg) ) However, evaluation order for C++ arguments is not specified, and some compilers may produce code that evalutes SvCUR($arg) first. When $arg is not a string (for example, an interger, number or a reference) then SvCUR will return an invalid value, and the program may abort or segfault.

    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 10, 2026Out-of-bounds read in the compact Theta sketch deserialization of Apache DataSketches C++ (repo: datasketches-cpp).CVE-2026-103635 · Websites & servers · Apache Software Foundation · reported by security@apache.orgCritical 9.1

    Out-of-bounds read in the compact Theta sketch deserialization of Apache DataSketches C++ (repo: datasketches-cpp). compact_theta_sketch::deserialize() and wrapped_compact_theta_sketch::wrap() read header fields before checking that the input was long enough. For the compressed format, the size check could be defeated by a 32-bit overflow, and two header fields that control decoding were not validated; this also affected deserialization from a stream. A crafted or truncated sketch could cause a read past the end of the input. In the compressed case the over-read can be large, and the bytes read can become part of the deserialized sketch. This can cause a crash (denial of service) and could expose adjacent memory contents. This issue affects Apache DataSketches C++: from 3.1.0 before 5.3.0. Only applications that deserialize Theta sketches from untrusted sources are affected. Users are recommended to upgrade to version 5.3.0, which fixes this issue.

    Product
    Apache DataSketches
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 10, 2026Out-of-bounds read and write in the CPC sketch deserialization of Apache DataSketches C++ (repo: datasketches-cpp).CVE-2026-103513 · Websites & servers · Apache Software Foundation · reported by security@apache.orgCritical 9.8

    Out-of-bounds read and write in the CPC sketch deserialization of Apache DataSketches C++ (repo: datasketches-cpp). A crafted serialized CPC sketch passed to cpc_sketch::deserialize(), from either a byte buffer or a stream, can cause the decompressor to read past the end of the compressed data, because the read position was only checked after decoding finished. In the hybrid flavor, it can also cause a write outside an internal heap buffer, because decoded row indices were not validated. Several other header fields and decoded values, including lg_k, were also not validated. This can corrupt heap memory, causing a crash and potentially enabling further exploitation. This issue affects Apache DataSketches C++: from 2.0.0-incubating before 5.3.0. Only applications that deserialize CPC sketches from untrusted sources are affected. Users are recommended to upgrade to version 5.3.0, which fixes this issue.

    Product
    Apache DataSketches
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 10, 2026Heap buffer overflow in the HLL sketch deserialization of Apache DataSketches C++ (repo: datasketches-cpp).CVE-2026-103501 · Websites & servers · Apache Software Foundation · reported by security@apache.orgCritical 9.8

    Heap buffer overflow in the HLL sketch deserialization of Apache DataSketches C++ (repo: datasketches-cpp). When deserializing a sketch in LIST mode, from either a byte buffer or a stream, the coupon count was read from the input and used as the number of entries to copy into a fixed buffer of 8 entries, without checking it against the buffer's capacity. A crafted sketch could cause a write of up to 988 bytes past the end of this internal heap buffer. This can corrupt heap memory, causing a crash and potentially enabling further exploitation. This issue affects Apache DataSketches C++: from 1.0.0-incubating before 5.3.0. Only applications that deserialize HLL sketches from untrusted sources are affected. Users are recommended to upgrade to version 5.3.0, which fixes this issue.

    Product
    Apache DataSketches
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 10, 2026Balance: Deserialization of Untrusted DataCVE-2026-93945 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Deserialization of Untrusted Data vulnerability in Axiomthemes Balance balance allows Object Injection.This issue affects Balance: from n/a through 1.12.0.

    Product
    Balance
    Affected
    up to 1.12.0
    What to do
    Affects up to 1.12.0. Update Balance to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 10, 2026Camelia: Deserialization of Untrusted DataCVE-2026-93944 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Deserialization of Untrusted Data vulnerability in ThemeREX Group Camelia camelia allows Object Injection.This issue affects Camelia: from n/a through 1.2.15.

    Product
    Camelia
    Affected
    up to 1.2.15
    What to do
    Affects up to 1.2.15. Update Camelia to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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