Vulnerability advisory
GHSA-67wg-6j7r-mqh8
Arbitrary Code Execution in TYPO3 CMS
Severity
- CVSS 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected versions
typo3/cms Packagist
All typo3/cms advisories →| Affected | Fixed in |
|---|---|
7.6.0 to before 7.6.22 | 7.6.22Advisories → |
8.0.0 to before 8.7.5 | 8.7.5Advisories → |
Description
Due to a missing file extension in the fileDenyPattern, backend user are allowed to upload *.pht files which can be executed in certain web server setups. The new default fileDenyPattern is the following, which might have been overridden in the TYPO3 Install Tool.
\.(php[3-7]?|phpsh|phtml|pht)(\..*)?$|^\.htaccess$