The fluid_components (aka Fluid Components) extension before 3.5.0 for TYPO3 allows XSS via a component argument parameter, for certain {content} use cases that may be edge cases.
CVSS 3.1MEDIUM 6.1·Network·No auth·User interaction·EPSS 0.00512·Published 2023-12-12·Fixed in 3.5.0CWE-79