Detections
Analytics
CVE-2021-38503
critical
Description
The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
References
https://www.mozilla.org/security/advisories/mfsa2021-50/
https://www.mozilla.org/security/advisories/mfsa2021-49/
https://www.mozilla.org/security/advisories/mfsa2021-48/
https://www.debian.org/security/2022/dsa-5034
https://www.debian.org/security/2021/dsa-5026
https://security.gentoo.org/glsa/202208-14
https://security.gentoo.org/glsa/202202-03
https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html