Authorization bypass through user-controlled key in Frontend User Registration - CVE-2026-120333
Published: November 4, 2026
Vulnerability identifier: #VU159001
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-120333
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to the actions linked in the emails of the extension do not reject requests with a missing or invalid hash. A remote attacker can retrieve the email address or username of all frontend users and delete arbitrary frontend user accounts.
Affected software
Frontend User Registration
How to mitigate CVE-2026-120333
Install updates from vendor's website.
Frontend User Registration - addressed in versions 13.2.5, 14.0.3