GHSA-x428-565f-8xj2 TYPO3 Arbitrary Code Execution and Cross-Site Scripting in Backend API
Authenticated backend users can execute arbitrary code or inject scripts via TSconfig fields in TYPO3.
- 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-x428-565f-8xj2?
GHSA-x428-565f-8xj2 is a code injection vulnerability in typo3/cms-core, published on 30 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Backend API configuration using Page TSconfig is vulnerable to arbitrary code execution and cross-site scripting. TSconfig fields of page properties in backend forms can be used to inject malicious sequences. Field tsconfig_includes is vulnerable to directory traversal leading to same scenarios as having direct access to TSconfig settings.
A valid backend user account having access to modify values for fields pages.TSconfig and pages.tsconfig_includes is needed in order to exploit this vulnerability.
Which versions are affected by GHSA-x428-565f-8xj2?
4 open source packages ship an affected version, including typo3/cms-core.
| Package | Affected | Fixed in |
|---|---|---|
typo3/cms-core Packagist | From 8.0.0 | 8.7.27 |
typo3/cms-core Packagist | From 8.0.0 | 8.7.27 |
typo3/cms-core Packagist | From 9.0.0 | 9.5.8 |
typo3/cms-core Packagist | From 9.0.0 | 9.5.8 |
How do I fix GHSA-x428-565f-8xj2?
Upgrade typo3/cms-core to a fixed version for your release line: 8.7.27 or 9.5.8.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is GHSA-x428-565f-8xj2 being exploited?
There is no known exploitation of GHSA-x428-565f-8xj2 in the wild and no public exploit code.