CVE-2025-47941: The TYPO3 CMS Backend has Broken Authentication in Backend MFA

high Affects typo3/cms-backend. Feed 2026.10.29.1, updated 2026-10-28; published 2025-05-20.

The TYPO3 CMS Backend has Broken Authentication in Backend MFA

Package: typo3/cms-backend Composer
Affected versions: >=12.0.0 and <12.4.31 or >=13.0.0 and <13.4.12
Fixed in: 12.4.31, 13.4.12
Severity: high CVSS 7.2
Exploitation: not on CISA KEV · EPSS 0% (40.5th percentile)
Published: 2025-05-20
Source: osv.dev

References

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# one-time install
pip install phpwarden

# then
phpwarden deps composer.lock

Or keep it checked automatically: GitHub Action · pre-commit hook · GitLab CI · Laravel artisan command

Install docs How findings are ranked

Related advisories

CVE-2009-3631 high TYPO3 Backend Command Injection via Shell Metacharacters in Uploaded File Name same package: typo3/cms-backend
CVE-2010-3663 high TYPO3 Arbitrary Code Execution vulnerability on the backend same package: typo3/cms-backend
CVE-2009-3630 medium TYPO3 Backend vulnerable to Frame Hijacking same package: typo3/cms-backend
CVE-2009-3629 low TYPO3 Backend vulnerable to Cross-site Scripting same package: typo3/cms-backend
CVE-2010-3659 medium TYPO3 Cross-site Scripting vulnerability in the extension manager and backend forms same package: typo3/cms-backend
CVE-2010-3664 medium TYPO3 is vulnerable to Information Disclosure on the backend same package: typo3/cms-backend