CriticalGHSA-67wg-6j7r-mqh8

Arbitrary Code Execution in TYPO3 CMS

Published 5 Jun 2024 · Updated 2 Dec 2024

Affected packages

typo3/cmsComposer

Affected: >=7.6.0 <7.6.22
Fixed in: 7.6.22

Update to the fixed version for your release line, for example:composer require typo3/cms:^7.6.22

typo3/cmsComposer

Affected: >=8.0.0 <8.7.5
Fixed in: 8.7.5

Update to the fixed version for your release line, for example:composer require typo3/cms:^8.7.5

Details

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)(\..*)?$|^\.htaccess$

Is GHSA-67wg-6j7r-mqh8 in any of your client repos?

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.