Advisories for Composer/Clickstorm/Cs-Seo package

Cross-site scripting (XSS) vulnerability in the [clickstorm] SEO (cs_seo) TYPO3 extension allows backend users to execute arbitrary script via the JSON-LD output.

A cross-site scripting (XSS) vulnerability has been discovered in the Clickstorm SEO extension. This vulnerabily is exploitable by a logged in backend user utilizing the TYPO3 backend user interface. This user can create output in the HTML context by exploiting improperly encoded user input. Updates 6.7.0, 7.4.0, 8.3.0 and 9.2.0 are available for download.