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CVE-2021-4140

CRITICAL

10.0

CVSS Severity Score

EPSS Score0.0830%

EPSS Percentile15.74th

Published2022年12月22日

Last Modified2025年4月16日

Vulnerability 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 (CPE)

📦

Mozilla

Firefox

< 96.0

📦

Mozilla

Firefox Esr

< 91.5

📦

Mozilla

Thunderbird

< 91.5

References & Advisories

🔗 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/

🔗 https://www.mozilla.org/security/advisories/mfsa2022-02/

🔗 https://www.mozilla.org/security/advisories/mfsa2022-03/

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