Cross-Site Scripting in Content Preview
ProblemIt has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed in the page module. A valid backend user account is needed to exploit this vulnerability.SolutionUpdate to TYPO3 versions 10.4.14, 11.1.1 that fix the problem described.CreditsThanks to Richie Lee who reported this issue and to TYPO3 framework merger Andreas Fernandez who fixed the issue.References[TYPO3-CORE-SA-2021-007](https://typo3.org/security/advisory/typo3-core-sa-2021-007)