CVE-2025-13013 — Authentication Bypass Using an Alternate Path or Channel in Mozilla Firefox

CWE-288 — Authentication Bypass Using an Alternate Path or ChannelCWE-79 — Cross-site Scripting12 documents8 sources
Severity
6.1MEDIUMNVD
EPSS
0.0%
top 88.02%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla ThunderbirdMozilla Firefox
Timeline
PublishedNov 11
Latest updateFeb 2

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.7

Affected Packages2 packages

▶NVDmozilla/firefox140.0 — 140.5.0+2
▶Debianmozilla/thunderbird< 1:140.5.0esr-1~deb11u1+3

🔴Vulnerability Details

3
GHSA
GHSA-vcwp-4m7w-hxfh: Mitigation bypass in the DOM: Core & HTML component↗2025-11-11
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CVEList
Mitigation bypass in the DOM: Core & HTML component↗2025-11-11
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OSV
CVE-2025-13013: Mitigation bypass in the DOM: Core & HTML component↗2025-11-11
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📋Vendor Advisories

8
Ubuntu
Thunderbird vulnerabilities↗2026-02-02
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Red Hat
firefox: thunderbird: Mitigation bypass in the DOM: Core & HTML component↗2025-11-11
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Debian
CVE-2025-13013: firefox - Mitigation bypass in the DOM: Core & HTML component. This vulnerability affects ...↗2025
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Mozilla
Mozilla Foundation Security Advisory 2025-88: CVE-2025-13013↗
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Mozilla
Mozilla Foundation Security Advisory 2025-90: CVE-2025-13013↗
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CVE-2025-13013 — Mozilla Firefox vulnerability | cvebase