Persisted Cross-Site Scripting in Frontend Rendering in typo3
CVE-2023-24814

8.8HIGH

Key Information:

Vendor

Typo3

Status
Typo3
Vendor
CVE Published:
7 February 2023

What is CVE-2023-24814?

A cross-site scripting (XSS) vulnerability exists in the TYPO3 Content Management Framework due to the improper handling of the server environment variable PATH_INFO. Malicious actors can exploit this weakness, especially when the TypoScript setting config.absRefPrefix=auto is enabled, leading to unauthorized HTML code being executed on user’s browsers. Injected values may not only affect individual sessions but can also be cached and serve other visitors, compromising site security. TYPO3 users are urged to upgrade their installations to secure versions or implement temporary mitigation strategies, such as changing config.absRefPrefix to a fixed static path, though this is not a comprehensive fix.

Affected Version(s)

typo3 >= 8.7.0, < 8.7.51 < 8.7.0, 8.7.51

typo3 >= 9.0.0, < 9.5.40 < 9.0.0, 9.5.40

typo3 >= 10.0.0, < 10.4.36 < 10.0.0, 10.4.36

References

https://github.com/TYPO3/typo3/security/advisories/GHSA-r...
x_refsource_CONFIRM
https://github.com/TYPO3/typo3/commit/0005a6fd86ab97eff8b...
x_refsource_MISC
https://docs.typo3.org/m/typo3/reference-typoscript/main/...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.