A security issue has been found in Firefox before version 88. A race condition with requestPointerLock() and setTimeout() could have resulted in a user interacting with one tab when they believed they were on a separate tab. In conjunction with certain elements (such as <input type="file">) this could have led to an attack where a user was confused about the origin of the webpage and potentially disclosed information they did not intend to.
A security issue has been found in Firefox before version 88. A race condition with requestPointerLock() and setTimeout() could have resulted in a user interacting with one tab when they believed they were on a separate tab. In conjunction with certain elements (such as <input type="file">) this could have led to an attack where a user was confused about the origin of the webpage and potentially disclosed information they did not intend to.
https://www.mozilla.org/en-US/security/advisories/mfsa2021-16/#CVE-2021-24000 https://bugzilla.mozilla.org/show_bug.cgi?id=1694698