GHSA-8m6j-p5jv-v69w TYPO3 Cross-Site Scripting in Online Media Asset Rendering
An attacker with backend access can inject malicious scripts via online media assets, potentially compromising user 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-8m6j-p5jv-v69w?
GHSA-8m6j-p5jv-v69w is a cross-site scripting vulnerability in typo3/cms, published on 7 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
*.youtube and *.vimeo files) is vulnerable to cross-site scripting. A valid backend user account or write access on the server system (e.g. SFTP) is needed in order to exploit this vulnerability.Which versions are affected by GHSA-8m6j-p5jv-v69w?
6 open source packages ship an affected version, including typo3/cms.
| Package | Affected | Fixed in |
|---|---|---|
typo3/cms Packagist | From 7.0.0 | 7.6.32 |
typo3/cms Packagist | From 7.0.0 | 7.6.32 |
typo3/cms Packagist | From 8.0.0 | 8.7.21 |
typo3/cms Packagist | From 8.0.0 | 8.7.21 |
typo3/cms Packagist | From 9.0.0 | 9.5.2 |
typo3/cms Packagist | From 9.0.0 | 9.5.2 |
How do I fix GHSA-8m6j-p5jv-v69w?
Upgrade typo3/cms to a fixed version for your release line: 7.6.32, 8.7.21 or 9.5.2.
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-8m6j-p5jv-v69w being exploited?
There is no known exploitation of GHSA-8m6j-p5jv-v69w in the wild and no public exploit code.