SecuriTricks - CVE-2025-8031

Description

The `username:password` part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials. This vulnerability affects Firefox < 141, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.

Product(s) Impacted

Vendor	Product	Versions
Mozilla	Firefox Thunderbird	<141 <141

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-276

Incorrect Default Permissions

During installation, installed file permissions are set to allow anyone to modify those files.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	mozilla	firefox	<141	/	/	/	/	/	/	/
a	mozilla	thunderbird	<141	/	/	/	/	/	/	/

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1971719

https://www.mozilla.org/security/advisories/mfsa2025-56/

https://www.mozilla.org/security/advisories/mfsa2025-58/

https://www.mozilla.org/security/advisories/mfsa2025-59/

https://www.mozilla.org/security/advisories/mfsa2025-61/

https://www.mozilla.org/security/advisories/mfsa2025-62/

https://www.mozilla.org/security/advisories/mfsa2025-63/

CVSS Score

9.8 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH

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

View Vector String

Timeline

Published: July 22, 2025, 9:15 p.m.
Last Modified: July 23, 2025, 2:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security@mozilla.org

CVE-2025-8031