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CVE-2026-115807EUVD-2026-109212GHSA-4C28-JC56-4GGG

User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor <= 4.0.3 - Authenticated (Author+) Limited Privilege Escalation via Gutenberg Block 'Assigned Role' Attribute

Published
Last modified
published
Not listed in CISA KEV
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

The User Profile Builder WordPress plugin, which handles user registration forms and profiles, is affected by this flaw. It allows a logged-in user with Author-level access or higher to create new accounts with elevated roles such as Editor, giving them more control over the site than their own role permits.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Limited Privilege Escalation in all versions up to, and including, 4.0.3. This is due to the Gutenberg Register block passing the attacker-controlled Assigned Role attribute directly into the `[wppb-register]` shortcode without server-side authorization. The role guard in the form builder only downgrades roles that carry the manage_options or remove_users capability, leaving the Editor role and other privileged non-Administrator roles completely unrestricted. This makes it possible for authenticated attackers with Author-level access and above to create new WordPress accounts bearing the Editor role (or any other role that lacks the two guarded capabilities).

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  4. Record last updated

Affected versions

  • cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor

    through 4.0.3

References 2

wordfence.com

plugins.trac.wordpress.org