Failing to properly encode user input, online media asset rendering (*.youtube
and *.vimeo
files) is vulnerable to cross-site scripting. A valid backend user account or write access on the server system (e.g. SFTP) is needed in order to exploit this vulnerability.
github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/2018-12-11-1.yaml
github.com/TYPO3/typo3
github.com/TYPO3/typo3/commit/20927adfb8aae0093508c904937e40114b92a90c
github.com/TYPO3/typo3/commit/a32a9a746f807b14571139f0cb7caa00b8d037a5
github.com/TYPO3/typo3/commit/c9174937802581bfecfaa788512a4f6e5cf8e9c7
typo3.org/security/advisory/typo3-core-sa-2018-006