TYPO3 CMS Stored Cross-Site Scripting via FileDumpController

Meta CVSS: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C 5.0 Problem It has been discovered that the FileDumpController backend and frontend context is vulnerable to cross-site scripting when malicious files are displayed using this component. A valid backend user account is needed t...