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 12 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
36added in the last 30 days
510new WordPress flaws this week
391,181entries in the database

5 results

  • Oct 6, 2026The Crayons plugin for SPIP before 3.5.0 contains a missing authorization vulnerability that allows unauthenticated attackers to modify arbitrary editable objecCVE-2026-104070 · Other software · SPIP · reported by VulnCheckCritical 9.3

    The Crayons plugin for SPIP before 3.5.0 contains a missing authorization vulnerability that allows unauthenticated attackers to modify arbitrary editable object fields by omitting the secu_ anti-forgery parameter in crayons_store.php, causing the authorization dispatcher to resolve an unconditionally-true handler instead of the proper modification check. Attackers can chain this flaw to write a malicious .html skeleton file, disclose sensitive configuration files containing the site secret, and forge a signed ajax context to execute the uploaded skeleton, achieving arbitrary PHP code execution as the web-server user.

    Product
    SPIP Crayons Plugin
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 11, 2023Crayon Syntax Highlighter: Server Side Request ForgeryCVE-2023-4893 · WordPress plugins & themes · reported by WordfenceMedium 6.4

    The Crayon Syntax Highlighter plugin for WordPress is vulnerable to Server Side Request Forgery via the 'crayon' shortcode in versions up to, and including, 2.8.4. This can allow authenticated attackers with contributor-level permissions or above to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.

    Product
    Crayon Syntax Highlighter
    Affected
    up to 2.8.4
    What to do
    Affects up to 2.8.4. Update Crayon Syntax Highlighter to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • May 22, 2023Cross-Site Request Forgery (CSRF) vulnerability in Aram Kocharyan Crayon Syntax Highlighter plugin <= 2.8.4 versions.CVE-2022-47167 · WordPress plugins & themes · reported by PatchstackMedium 5.4

    Cross-Site Request Forgery (CSRF) vulnerability in Aram Kocharyan Crayon Syntax Highlighter plugin <= 2.8.4 versions.

    Affected
    up to 2.8.4
    What to do
    Affects up to 2.8.4. 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.
  • Dec 31, 2020An issue was discovered in the crayon crate through 2020-08-31 for Rust.CVE-2020-35889 · Other software · Crayon Project · reported by MITREHigh 8.1

    An issue was discovered in the crayon crate through 2020-08-31 for Rust. A TOCTOU issue has a resultant memory safety violation via HandleLike.

    Product
    Crayon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 20, 2019The crayon-syntax-highlighter plugin before 2.8.4 for WordPress has multiple XSS issues via AJAX requests.CVE-2016-10893 · WordPress plugins & themes · reported by MITREMedium 6.1

    The crayon-syntax-highlighter plugin before 2.8.4 for WordPress has multiple XSS issues via AJAX requests.

    Product
    crayon-syntax-highlighter
    Fixed in
    2.8.4
    What to do
    Update crayon-syntax-highlighter to 2.8.4 or newer.

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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