CVE-2021-4140

Description

It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Affected Platforms

Weakness Type

CWE-91, CWE-91

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1746720
• https://www.mozilla.org/security/advisories/mfsa2022-01/
• https://www.mozilla.org/security/advisories/mfsa2022-02/
• https://www.mozilla.org/security/advisories/mfsa2022-03/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1746720
• https://www.mozilla.org/security/advisories/mfsa2022-01/