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CVE-2021-43528

CVE-2021-43528

EPSS 1.3%
Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to further an attack with other vulnerabilities. This vulnerability affects Thunderbird < 91.4.0.
Affected products
Mozilla · Thunderbird

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References
https://bugzilla.mozilla.org/show_bug.cgi?id=1742579https://lists.debian.org/debian-lts-announce/2022/01/msg00001.htmlhttps://security.gentoo.org/glsa/202208-14https://www.debian.org/security/2022/dsa-5034https://www.mozilla.org/security/advisories/mfsa2021-54/