CVE-2025-13019CWE-942

CVE-2025-13019

High · published November 11, 2025

CVSS v3.1
8.1
EPSS
0%
Percentile
18.9
In the wild
Unconfirmed
What it is

Same-origin policy bypass in the DOM: Workers component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00275 · 18.9th percentile
Weakness
CWE-942 · Permissive Cross-domain Security Policy with Untrusted Domains
Published
2025-11-11T21:15Z
Affected products (2)
ProductVersionsFixed in
mozilla/firefox< 140.5.0140.5.0
mozilla/firefox< 145.0145.0
References (5)
https://bugzilla.mozilla.org/show_bug.cgi?id=1988412 · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-87/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-88/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-90/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-91/ · [email protected]
EPSS history
Timeline
  • 11 NOV 15:47Z
    Same-origin policy bypass in the DOM: Workers component
    cvelistv5