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CVE-2021-32669 - Spiny Finishes

Description

TYPO3 is an open source PHP based web content management system. Versions 9.0.0 through 9.5.28 10.0.0 through 10.4.17 and 11.0.0 through 11.3.0 have a cross-site scripting vulnerability. When settings for backend layouts are not properly encoded the corresponding grid view is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability. TYPO3 versions 9.5.29 10.4.18 11.3.1 contain a patch for this vulnerability.

Reference

https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-rgcg-28xm-8mmw https://typo3.org/security/advisory/typo3-core-sa-2021-011