The vulnerability of the PFileSystemRequestConstructor function in browsers such as Firefox, Firefox ESR, and the email client Thunderbird allows for bypassing access control to the file system in the shell environment, enabling attackers to gain access to protected information.

The vulnerability of the PFileSystemRequestConstructor function in browsers such as Firefox, Firefox ESR, and the email client Thunderbird relates to bypassing access controls for the file system in the shell. Exploiting this vulnerability can allow a malicious actor, operating remotely, to gain...