CVE-2025-13018

high

Description

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5.

References

https://www.mozilla.org/security/advisories/mfsa2025-91/

https://www.mozilla.org/security/advisories/mfsa2025-90/

https://www.mozilla.org/security/advisories/mfsa2025-88/

https://www.mozilla.org/security/advisories/mfsa2025-87/

https://bugzilla.mozilla.org/show_bug.cgi?id=1984940

Details

Source: Mitre, NVD

Published: 2025-11-11

Updated: 2026-04-13

Risk Information

CVSS v2

Base Score: 9.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 8.1

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