CVE-2021-43541 | Mozilla Firefox/Firefox ESR/Thunderbird Protocol escape output (Nessus ID 208604)
A vulnerability was found in Mozilla Firefox, Firefox ESR and Thunderbird. It has been classified as critical. This affects an unknown part of the component Protocol Handler. The manipulation leads to escaping of output.
This vulnerability is uniquely identified as CVE-2021-43541. It is possible to initiate the attack remotely. There is no exploit available.
It is recommended to upgrade the affected component.