CVE-2025-13013mediumCWE-288

CVE-2025-13013: medium-severity vulnerability in Mozilla Firefox

Mitigation bypass in the DOM: Core & HTML component

Published 11 Nov 2025 · Updated 13 Apr 2026

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13Vexday Risk Score

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

ssvc Trackcvss 6.1epss 0.2%

Mitigation bypass in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Firefox ESR 115.30, Thunderbird 145, and Thunderbird 140.5.

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

Affected products

Mozilla · Firefox Mozilla · Thunderbird

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1991945 https://www.mozilla.org/security/advisories/mfsa2025-87/https://www.mozilla.org/security/advisories/mfsa2025-88/https://www.mozilla.org/security/advisories/mfsa2025-89/https://www.mozilla.org/security/advisories/mfsa2025-90/https://www.mozilla.org/security/advisories/mfsa2025-91/