GHSA-4ppr-jw47-9qm5 TYPO3 Cross-Site Scripting in Link Handling
An attacker can inject malicious scripts via t3:// URLs or typolink functionality, affecting both backend and frontend users.
- 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-4ppr-jw47-9qm5?
GHSA-4ppr-jw47-9qm5 is a cross-site scripting vulnerability in typo3/cms-core, published on 30 May 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-4ppr-jw47-9qm5?
6 open source packages ship an affected version, including typo3/cms-core.
| Package | Affected | Fixed in |
|---|---|---|
typo3/cms-core Packagist | From 10.0.0 | 10.2.1 |
typo3/cms-core Packagist | From 10.0.0 | 10.2.1 |
typo3/cms-core Packagist | From 8.0.0 | 8.7.30 |
typo3/cms-core Packagist | From 8.0.0 | 8.7.30 |
typo3/cms-core Packagist | From 9.0.0 | 9.5.12 |
typo3/cms-core Packagist | From 9.0.0 | 9.5.12 |
How do I fix GHSA-4ppr-jw47-9qm5?
Upgrade typo3/cms-core to a fixed version for your release line: 10.2.1, 8.7.30 or 9.5.12.
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-4ppr-jw47-9qm5 being exploited?
There is no known exploitation of GHSA-4ppr-jw47-9qm5 in the wild and no public exploit code.