CVE-2010-3663: TYPO3 Arbitrary Code Execution vulnerability on the backend

high Affects typo3/cms-backend. Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

TYPO3 Arbitrary Code Execution vulnerability on the backend

Package
typo3/cms-backend Composer
Affected versions
<4.1.14 or >=4.2 and <4.2.13 or >=4.3 and <4.3.4 or >=4.4 and <4.4.1
Fixed in
4.1.14, 4.2.13, 4.3.4, 4.4.1
Severity
high  CVSS 8.8
Exploitation
not on CISA KEV · EPSS 2% (83.9th percentile)
Published
2022-04-21
Source
osv.dev

References

CWE-434
NVD recordtypo3/cms-backend advisories

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