The “Configuration” backend module of the extension allows an authenticated user to write arbitrary page TSConfig for folders configured as “Direct Mail”. Exploiting the vulnerability may lead to Configuration Injection (TYPO3 10.4 and above) and to Arbitrary Code Execution (TYPO3 9.5 and below).\n\nA valid backend user account having access to the Direct Mail \"Configuration\" backend module is needed in order to exploit this vulnerability.