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PatchSiren cyber security CVE debrief

CVE-2026-8692 registrationformbuilder CVE debrief

The Vedrixa Forms – User Registration Form, Signup Form & Drag & Drop Form Builder plugin for WordPress is vulnerable to authorization bypass. This issue, affecting versions up to and including 1.1.1, allows authenticated attackers with subscriber-level access or higher to modify form structures by writing to the plugin's FORMS database table. The 'ajax-nonce' used by this handler is publicly accessible via wp_localize_script(), enabling any authenticated user visiting a page with a form shortcode to obtain it.

Vendor
registrationformbuilder
Product
Vedrixa Forms – User Registration Form, Signup Form & Drag & Drop Form Builder
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-22
Original CVE updated
2026-07-23
Advisory published
2026-05-22
Advisory updated
2026-07-23

Who should care

Administrators of WordPress sites using the Vedrixa Forms – User Registration Form, Signup Form & Drag & Drop Form Builder plugin, especially those allowing user registration or with multiple authenticated users, should prioritize updating to a patched version to prevent potential unauthorized form modifications.

Technical summary

The Vedrixa Forms – User Registration Form, Signup Form & Drag & Drop Form Builder plugin for WordPress has an authorization bypass vulnerability. This is due to insufficient verification of user authorization for certain actions. An attacker with authenticated access, at the subscriber level or higher, can modify the structure of any form by adding, removing, or altering fields. This is achieved by writing attacker-controlled data to the plugin's FORMS database table. The vulnerability is exacerbated by the public exposure of the 'ajax-nonce' via wp_localize_script(), allowing any authenticated user to access this nonce without elevated privileges.

Defensive priority

Medium priority should be given to updating the Vedrixa Forms plugin to prevent exploitation. Sites with open user registration or a large number of authenticated users are at higher risk.

Recommended defensive actions

  • Update the Vedrixa Forms – User Registration Form, Signup Form & Drag & Drop Form Builder plugin to the latest version.
  • Review and restrict user roles and capabilities, especially for users with subscriber-level access.
  • Monitor form modifications and database changes for suspicious activity.
  • Consider implementing additional security measures such as two-factor authentication and stricter nonce handling.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-05-22T09:16:33.183Z and was last modified on 2026-07-23T16:10:00.137Z. The NVD entry is currently Deferred. The vulnerability was reported by [email protected].

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-05-22T09:16:33.183Z and has not been modified since then. The NVD entry is currently Deferred.