GHSA-67wg-6j7r-mqh8 Arbitrary Code Execution in TYPO3 CMS
Backend users can upload executable .pht files due to missing deny patterns, leading to arbitrary code execution on vulnerable server configurations.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is GHSA-67wg-6j7r-mqh8?
GHSA-67wg-6j7r-mqh8 is a vulnerability in typo3/cms, published on 5 Jun 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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)(\..*)?$|^\.htaccess$
Which versions are affected by GHSA-67wg-6j7r-mqh8?
4 open source packages ship an affected version, including typo3/cms.
| Package | Affected | Fixed in |
|---|---|---|
typo3/cms Packagist | From 7.6.0 | 7.6.22 |
typo3/cms Packagist | From 7.6.0 | 7.6.22 |
typo3/cms Packagist | From 8.0.0 | 8.7.5 |
typo3/cms Packagist | From 8.0.0 | 8.7.5 |
How do I fix GHSA-67wg-6j7r-mqh8?
Upgrade typo3/cms to a fixed version for your release line: 7.6.22 or 8.7.5.
Is GHSA-67wg-6j7r-mqh8 being exploited?
There is no known exploitation of GHSA-67wg-6j7r-mqh8 in the wild and no public exploit code.