Vulnerability Description
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.
CVSS Score
8.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 140.5.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1988412Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-87/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-88/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-90/
- https://www.mozilla.org/security/advisories/mfsa2025-91/
FAQ
What is CVE-2025-13019?
CVE-2025-13019 is a vulnerability with a CVSS score of 8.1 (HIGH). 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.
How severe is CVE-2025-13019?
CVE-2025-13019 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-13019?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.