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NVD Vulnerability Details :

CVE-2025-13019

Modified

Source-security@mozilla.org

Published At-11 Nov, 2025 | 16:15

Updated At-13 Apr, 2026 | 15:16

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	8.1	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Type: Secondary

Version: 3.1

Base score: 8.1

Base severity: HIGH

Vector:

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

CPE Matches

Mozilla Corporation

>>firefox>>Versions before 140.5.0(exclusive)

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

Mozilla Corporation

>>firefox>>Versions before 145.0(exclusive)

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

Weaknesses

CWE ID	Type	Source
CWE-942	Secondary	134c704f-9b21-4f2e-91b3-4a467353bcc0

CWE ID: CWE-942

Type: Secondary

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

References

Hyperlink	Source	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1988412	security@mozilla.org	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-87/	security@mozilla.org	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-88/	security@mozilla.org	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-90/	security@mozilla.org	N/A
https://www.mozilla.org/security/advisories/mfsa2025-91/	security@mozilla.org	N/A