What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-09-04 · updated 2026-06-17
• Weakness: CWE-862

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.

Affected products

• wpextended The Ultimate WordPress Toolkit – WP Extended: before 3.0.9 — fixed in 3.0.9

How to fix

Upgrade to a fixed version: wpextended The Ultimate WordPress Toolkit – WP Extended 3.0.9. Check the vendor advisory for mitigations.

References

• 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=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/f3d08ac9-22f7-45f4-9896-05b90f5fce64?source=cve

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