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.

1,764exploited flaws on CISA’s list
35added in the last 30 days
456new WordPress flaws this week
390,714entries in the database

12 results

  • Sep 15, 2026Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered): Stored Cross-Site ScriptingCVE-2026-15402 · WordPress plugins & themes · reported by WordfenceMedium 6.4

    The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'etn_shedule_objective' schedule_slot Parameter in all versions up to, and including, 4.1.23 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

    Product
    Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered)
    Affected
    up to 4.1.23
    What to do
    Affects up to 4.1.23. Update Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Sep 9, 2026Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered): Authorization bypassCVE-2026-11821 · WordPress plugins & themes · reported by WordfenceMedium 5.4

    The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.1.17. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to view, create, update, clone, and delete notification flow event automation workflows that should be restricted to administrators.

    Product
    Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered)
    Affected
    up to 4.1.17
    What to do
    Affects up to 4.1.17. Update Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Sep 8, 2026Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered): Local File InclusionCVE-2026-15667 · WordPress plugins & themes · reported by WordfenceHigh 7.5

    The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.1.22 via the 'event_layout' parameter parameter. This makes it possible for authenticated attackers, with contributor-level access and above, to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included. The etn_manage_event capability is assigned to Contributors by default, meaning any Contributor-level user can set the malicious event_layout value via the REST API without any additional configuration.

    Product
    Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered)
    Affected
    up to 4.1.22
    What to do
    Affects up to 4.1.22. Update Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Sep 8, 2026Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered): Local File InclusionCVE-2026-15406 · WordPress plugins & themes · reported by WordfenceHigh 7.5

    The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.1.22 via the 'event_layout' parameter parameter. This makes it possible for authenticated attackers, with custom-level access and above, to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included.

    Product
    Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered)
    Affected
    up to 4.1.22
    What to do
    Affects up to 4.1.22. Update Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jul 28, 2026Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar: Authorization bypassCVE-2026-17166 · WordPress plugins & themes · reported by WordfenceMedium 4.3

    The Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.3.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to modify site-wide payment settings — including WooCommerce payment enablement, cart redirect behavior, login requirements for checkout, confirmation page ID, and confirmed ticket statuses — that govern how all event bookings are processed.

    Product
    Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar
    Affected
    up to 5.3.7
    What to do
    Affects up to 5.3.7. Update Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jul 10, 2026Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered): Authorization bypassCVE-2026-13039 · WordPress plugins & themes · reported by WordfenceMedium 5.3

    The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to authorization bypass due to a regression in versions from 4.0.26 up to and including 4.1.15. This is due to the plugin not properly verifying that a user is authorized to perform an action in the payment_complete() function of PaymentController.php. This makes it possible for unauthenticated attackers to mark unpaid ticket orders as completed by submitting a fabricated SureCart checkout ID or FluentCart cart hash, granting themselves paid event access, QR-code attendee tickets, and order confirmation emails without making any real payment. The wp_rest nonce required to reach the vulnerable endpoint is embedded in every public event page, meaning no WordPress session or credentials are needed to obtain it. This vulnerability represents a regression — the same function and endpoint were previously patched but the fix did not persist through subsequent releases.

    Product
    Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered)
    Affected
    up to 4.1.15
    What to do
    Affects up to 4.1.15. Update Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jul 10, 2026Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered): Stored Cross-Site ScriptingCVE-2026-12924 · WordPress plugins & themes · reported by WordfenceMedium 6.4

    The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'etn_faq_content' parameter in all versions up to, and including, 4.1.15 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

    Product
    Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered)
    Affected
    up to 4.1.15
    What to do
    Affects up to 4.1.15. Update Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jan 15, 2025Event Registration Calendar By vcita: Stored Cross-Site ScriptingCVE-2024-11870 · WordPress plugins & themes · reported by WordfenceMedium 6.4

    The Event Registration Calendar By vcita plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcodes in all versions up to, and including, 1.4.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

    Product
    Event Registration Calendar By vcita
    Affected
    up to 1.4.0
    What to do
    Affects up to 1.4.0. Update Event Registration Calendar By vcita to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Aug 21, 2024Event Espresso 4 Decaf – Event Registration Event Ticketing: Limited unauthorized plugin settings modificationCVE-2024-6883 · WordPress plugins & themes · reported by WordfenceMedium 4.3

    The Event Espresso 4 Decaf – Event Registration Event Ticketing plugin for WordPress is vulnerable to limited unauthorized plugin settings modification due to a missing capability check on the saveTimezoneString and some other functions in all versions up to and including 4.10.46.decaf. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify some of the plugin settings.

    Product
    Event Espresso 4 Decaf – Event Registration Event Ticketing
    Affected
    up to 4.10.46.decaf
    What to do
    Affects up to 4.10.46.decaf. Update Event Espresso 4 Decaf – Event Registration Event Ticketing to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jun 3, 2023The Event Registration Calendar By vcita plugin, versions up to and including 3.10.0, and Online Payments – Get Paid with PayPal, Square & Stripe plugin, for WoCVE-2023-2407 · WordPress plugins & themes · reported by WordfenceMedium 6.1

    The Event Registration Calendar By vcita plugin, versions up to and including 3.10.0, and Online Payments – Get Paid with PayPal, Square & Stripe plugin, for WordPress are vulnerable to Cross-Site Request Forgery. This is due to missing nonce validation in the ls_parse_vcita_callback() function. This makes it possible for unauthenticated attackers to modify the plugin's settings and inject malicious JavaScript via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

    Affected
    up to 3.10.0
    What to do
    Affects up to 3.10.0. 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.
  • Jun 3, 2023The Event Registration Calendar By vcita plugin, versions up to and including 3.9.1, and Online Payments – Get Paid with PayPal, Square & Stripe plugin, for WorCVE-2023-2406 · WordPress plugins & themes · reported by WordfenceMedium 6.4

    The Event Registration Calendar By vcita plugin, versions up to and including 3.9.1, and Online Payments – Get Paid with PayPal, Square & Stripe plugin, for WordPress are vulnerable to Stored Cross-Site Scripting via the 'email' parameter in versions up to, and including, 1.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with the edit_posts capability, such as contributors and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

    Affected
    up to 3.9.1
    What to do
    Affects up to 3.9.1. 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.
  • Sep 13, 2011SQL injection vulnerability in the Event Registration plugin 5.32 and earlier for WordPress allows remote attackers to execute arbitrary SQL commands via the evCVE-2010-4839 · WordPress plugins & themes · reported by MITREHigh 7.5

    SQL injection vulnerability in the Event Registration plugin 5.32 and earlier for WordPress allows remote attackers to execute arbitrary SQL commands via the event_id parameter in a register action.

    Product
    Event Registration
    Affected
    up to 5.32
    What to do
    Affects up to 5.32. Update Event Registration 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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