A security issue was found in Firefox before version 86.0 and Thunderbird before version 78.8. If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs.
A security issue was found in Firefox before version 86.0 and Thunderbird before version 78.8. If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs.
https://www.mozilla.org/en-US/security/advisories/mfsa2021-07/#CVE-2021-23968 https://www.mozilla.org/en-US/security/advisories/mfsa2021-09/#CVE-2021-23968 https://bugzilla.mozilla.org/show_bug.cgi?id=1687342