GHSA-86r8-4g3w-7xjp Cross-Site Scripting in TYPO3 Backend
An authenticated backend user can inject malicious scripts into TYPO3 backend components, potentially compromising other users' sessions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is GHSA-86r8-4g3w-7xjp?
GHSA-86r8-4g3w-7xjp is a cross-site scripting vulnerability in typo3/cms, published on 5 Jun 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Which versions are affected by GHSA-86r8-4g3w-7xjp?
6 open source packages ship an affected version, including typo3/cms.
| Package | Affected | Fixed in |
|---|---|---|
typo3/cms Packagist | From 6.2.0 | 6.2.26 |
typo3/cms Packagist | From 6.2.0 | 6.2.26 |
typo3/cms Packagist | From 7.6.0 | 7.6.10 |
typo3/cms Packagist | From 7.6.0 | 7.6.10 |
typo3/cms Packagist | From 8.0.0 | 8.2.1 |
typo3/cms Packagist | From 8.0.0 | 8.2.1 |
How do I fix GHSA-86r8-4g3w-7xjp?
Upgrade typo3/cms to a fixed version for your release line: 6.2.26, 7.6.10 or 8.2.1.
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-86r8-4g3w-7xjp being exploited?
There is no known exploitation of GHSA-86r8-4g3w-7xjp in the wild and no public exploit code.