cvedb.io
CVE-2021-43543
MEDIUM · CVSS 6.1
EPSS exploitation probability: 0%
Published 2021-12-08T22:15:09.947 · Last modified 2026-06-17T04:11:06.227

Summary

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.

Affected products

mozilla — firefox

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.