SB2025111351 - Missing Authorization in Modules extension for TYPO3
Published: November 13, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Missing Authorization (CVE-ID: CVE-2025-12998)
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error when processing authentication requests if the setting "module.frontendUser.allowNonAdminUsersToLoginAsFrontendUser" is enabled. A remote attacker can login as any frontend user.
Remediation
Install update from vendor's website.