CVE-2021-23968
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 1.2%
exploitation probability
1.2%top 33% of all CVEs
observed exploitation
nono source reports it
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. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1687342https://lists.debian.org/debian-lts-announce/2021/03/msg00000.htmlhttps://security.gentoo.org/glsa/202104-09https://security.gentoo.org/glsa/202104-10https://www.debian.org/security/2021/dsa-4866https://www.mozilla.org/security/advisories/mfsa2021-07/https://www.mozilla.org/security/advisories/mfsa2021-08/https://www.mozilla.org/security/advisories/mfsa2021-09/