CVE-2022-29911mediumCWE-1021

CVE-2022-29911: medium-severity vulnerability in Mozilla Thunderbird

Published 22 Dec 2022 · Updated 16 Apr 2025

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.1epss 0.6%

An improper implementation of the new iframe sandbox keyword <code>allow-top-navigation-by-user-activation</code> could lead to script execution without <code>allow-scripts</code> being present. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1761981 https://www.mozilla.org/security/advisories/mfsa2022-16/https://www.mozilla.org/security/advisories/mfsa2022-17/https://www.mozilla.org/security/advisories/mfsa2022-18/