The gridelements (aka Grid Elements) extension through 7.6.1, 8.x through 8.7.0, 9.x through 9.7.0, and 10.x through 10.2.0 extension for TYPO3 allows XSS.
The gridelements (aka Grid Elements) extension through 7.6.1, 8.x through 8.7.0, 9.x through 9.7.0, and 10.x through 10.2.0 extension for TYPO3 allows XSS.