CVE-2025-13013

MEDIUM 6.1CVE-2025-13013 · Published 11/11/2025 · updated 23/10/2026

In short

CVE-2025-13013 is a MEDIUM (CVSS 6.1) vulnerability affecting firefox (mozilla).
Chance of exploitation in the next 30 days (EPSS): 0.22%, higher than 12.3% of all vulnerabilities.
Fix: update to 140.5.0, 115.30.0, 145.0 or later.

Package	Affected versions	Patched versions
firefox mozilla	`≥ 140.0, < 140.5.0< 115.30.0< 145.0`	`140.5.0115.30.0145.0`

Description

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.

References

bugzilla.mozilla.org/show_bug.cgi · Permissions Required
mozilla.org/security/advisories/mfsa2025-87 · Vendor Advisory
mozilla.org/security/advisories/mfsa2025-88 · Vendor Advisory
mozilla.org/security/advisories/mfsa2025-89 · Vendor Advisory
mozilla.org/security/advisories/mfsa2025-90
mozilla.org/security/advisories/mfsa2025-91

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Package

Affected versions

Patched versions

firefox

mozilla

≥ 140.0, < 140.5.0< 115.30.0< 145.0

140.5.0115.30.0145.0

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