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cve/2021/CVE-2021-43543.md
0xMarcio cb00e1339f Update CVE list 2025-09-29 21:09
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CVE-2021-43543

Description

Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

POC

Reference

Github

No PoCs found on GitHub currently.