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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Mozilla
  • Firefox
  • Firefox Esr

Configuration 1 [-]

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*

No data.

References
Link Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=1988412 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-13019 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-13019 cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-87/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-88/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-88/#CVE-2025-13019 cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-90/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-91/ cve-icon cve-icon
History

Mon, 13 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
Description Same-origin policy bypass in the DOM: Workers component. This vulnerability affects Firefox < 145, Firefox ESR < 140.5, Thunderbird < 145, and Thunderbird < 140.5. 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.

Wed, 19 Nov 2025 19:30:00 +0000

Type Values Removed Values Added
Description Same-origin policy bypass in the DOM: Workers component. This vulnerability affects Firefox < 145 and Firefox ESR < 140.5. Same-origin policy bypass in the DOM: Workers component. This vulnerability affects Firefox < 145, Firefox ESR < 140.5, Thunderbird < 145, and Thunderbird < 140.5.
References

Mon, 17 Nov 2025 12:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*

Wed, 12 Nov 2025 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-942
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

 ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}

Wed, 12 Nov 2025 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Mozilla firefox Esr
Vendors & Products Mozilla
Mozilla firefox
Mozilla firefox Esr

Wed, 12 Nov 2025 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-346
References
Metrics threat_severity

None

 cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

threat_severity

Moderate

Tue, 11 Nov 2025 16:00:00 +0000

Type Values Removed Values Added
Description Same-origin policy bypass in the DOM: Workers component. This vulnerability affects Firefox < 145 and Firefox ESR < 140.5.
Title Same-origin policy bypass in the DOM: Workers component
References
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2025-11-11T15:47:16.759Z

Updated: 2026-04-13T14:26:31.931Z

Reserved: 2025-11-11T15:12:20.399Z

Link: CVE-2025-13019

cve-icon Vulnrichment

Updated: 2025-11-12T15:03:17.093Z

cve-icon NVD

Status : Modified

Published: 2025-11-11T16:15:39.000

Modified: 2026-04-13T15:16:43.183

Link: CVE-2025-13019

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-11-11T15:47:16Z

Links: CVE-2025-13019 - Bugzilla