CVE-2020-6798 | Mozilla Firefox/Firefox ESR/Thunderbird Template Tag cross site scripting (USN-4278-2 / Nessus ID 247001)
A vulnerability was found in Mozilla Firefox, Firefox ESR and Thunderbird. It has been classified as critical. Affected is an unknown function of the component Template Tag Handler. The manipulation leads to cross site scripting.
This vulnerability is traded as CVE-2020-6798. It is possible to launch the attack remotely. There is no exploit available.
It is recommended to upgrade the affected component.