Fluid Components TYPO3 extension vulnerable to Cross-Site Scripting
Date: 2023-03
Affected: composer/sitegeist/fluid-components
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2023-28604
CWE: CWE-79
CVSS: 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

All versions of Fluid Components before 3.5.0 were susceptible to Cross-Site Scripting. Version 3.5.0 of the extension fixes this issue. Due to the nature of the problem, some changes in your project's Fluid templates might be necessary to prevent unwanted double-escaping of HTML markup.


Mitigations:

Architectural layers (MAESTRO):