CVE-2025-47941: TYPO3 Has Broken Authentication in Backend MFA
Problem The multifactor authentication (MFA) dialog presented during backend login can be bypassed due to insufficient enforcement of access restrictions on all backend routes.
Successful exploitation requires valid backend user credentials, as MFA can only be bypassed after successful authentication.
Solution Update to TYPO3 versions 12.4.31 LTS, 13.4.12 LTS that fix the problem described.
Credits Thanks to Jens Jacobsen and Y. Kahveci for reporting this issue, and to TYPO3 security team member Torben Hansen for fixing it.
Other sources
TYPO3 is an open source, PHP based web content management system. In versions on the 12.x branch prior to 12.4.31 LTS and the 13.x branch prior to 13.4.2 LTS, the multifactor authentication (MFA) dialog presented during backend login can be bypassed due to insufficient enforcement of access restrictions on all backend routes. Successful exploitation requires valid backend user credentials, as MFA can only be bypassed after successful authentication. Users should update to TYPO3 version 12.4.31 LTS or 13.4.12 LTS to fix the problem.
— MITRE
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-47941?
CVE-2025-47941 is considered a high severity vulnerability that allows for multifactor authentication bypass in TYPO3.
How do I fix CVE-2025-47941?
To fix CVE-2025-47941, upgrade TYPO3 to version 12.4.31 LTS or 13.4.2 LTS or later.
Which versions of TYPO3 are affected by CVE-2025-47941?
CVE-2025-47941 affects TYPO3 versions prior to 12.4.31 LTS and 13.4.2 LTS.
What kind of attack does CVE-2025-47941 facilitate?
CVE-2025-47941 facilitates attacks by allowing unauthorized users to bypass multifactor authentication during backend login.
Is there a workaround for CVE-2025-47941 until I can update?
There is no known workaround for CVE-2025-47941, so immediate updating is recommended.