GHSA-76r3-m635-p3vc TYPO3 Cross-Site Scripting in Language Pack Handling
An attacker can execute arbitrary scripts in the TYPO3 install tool via malicious language packs, potentially compromising the installation process.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is GHSA-76r3-m635-p3vc?
GHSA-76r3-m635-p3vc is a cross-site scripting vulnerability in typo3/cms-core, published on 30 May 2024. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Which versions are affected by GHSA-76r3-m635-p3vc?
2 open source packages ship an affected version, including typo3/cms-core.
| Package | Affected | Fixed in |
|---|---|---|
typo3/cms-core Packagist | From 9.2.0 | 9.5.4 |
typo3/cms-core Packagist | From 9.2.0 | 9.5.4 |
How do I fix GHSA-76r3-m635-p3vc?
Upgrade typo3/cms-core to 9.5.4 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is GHSA-76r3-m635-p3vc being exploited?
There is no known exploitation of GHSA-76r3-m635-p3vc in the wild and no public exploit code.