CVE-2024-34357
TYPO3 vulnerable to Cross-Site Scripting in the ShowImageController
Description
### Problem Failing to properly encode user-controlled values in file entities, the `ShowImageController` (_eID tx_cms_showpic_) is vulnerable to cross-site scripting. Exploiting this vulnerability requires a valid backend user account with access to file entities. ### Solution Update to TYPO3 versions 9.5.48 ELTS, 10.4.45 ELTS, 11.5.37 LTS, 12.4.15 LTS, 13.1.1 that fix the problem described. ### Credits Thanks to TYPO3 security team member Torben Hansen who reported this issue and to TYPO3 core & security team member Oliver Hader who fixed the issue. ### References * [TYPO3-CORE-SA-2024-009](https://typo3.org/security/advisory/typo3-core-sa-2024-009)
How to fix CVE-2024-34357
To remediate CVE-2024-34357, upgrade the affected package to a fixed version below.
- —upgrade to 9.5.48 or later
Is CVE-2024-34357 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 9.0.0, < 9.5.48
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |