CVE-2025-8043

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-8043
Focus incorrectly truncated URLs towards the beginning instead of around the origin. This vulnerability affects Firefox < 141 and Thunderbird < 141.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1970209 Exploit Issue Tracking
https://www.mozilla.org/security/advisories/mfsa2025-56/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-61/ Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
History

28 Jul 2025, 14:05

Type Values Removed Values Added
First Time Mozilla firefox
Mozilla thunderbird
Mozilla
CPE cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
References () https://bugzilla.mozilla.org/show_bug.cgi?id=1970209 - () https://bugzilla.mozilla.org/show_bug.cgi?id=1970209 - Exploit, Issue Tracking
References () https://www.mozilla.org/security/advisories/mfsa2025-56/ - () https://www.mozilla.org/security/advisories/mfsa2025-56/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2025-61/ - () https://www.mozilla.org/security/advisories/mfsa2025-61/ - Vendor Advisory

23 Jul 2025, 16:15

Type Values Removed Values Added
CWE CWE-451
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 9.8
Summary
  • (es) Las URL truncadas se enfocan incorrectamente al principio en lugar de alrededor del origen. Esta vulnerabilidad afecta a Firefox (versión anterior a la 141) y Thunderbird (versión anterior a la 141).

22 Jul 2025, 21:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-07-22 21:15

Updated : 2025-07-28 14:05

NVD link : CVE-2025-8043

Mitre link : CVE-2025-8043

CVE.ORG link : CVE-2025-8043

JSON object : View

Products Affected

mozilla

  • firefox
  • thunderbird
CWE
CWE-451

User Interface (UI) Misrepresentation of Critical Information