Incorrect URL stripping in CSP reports (Mozilla Firefox)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.51 % · percentile 44 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mozilla
- NVD status
- Modified
Description
The `username:password` part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials. This vulnerability was fixed in Firefox 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
Weaknesses (CWE)
- CWE-276 — Incorrect Default Permissions
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/
- https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2025-22366
- GCVE · GCVE-0-2025-8031
CERT-FR advisories
- CERTFR-2025-AVI-0756 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0615 — Multiples vulnérabilités dans les produits Mozilla · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*< 128.13.0cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*< 141.0cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*≥ 140.0 < 140.1.0cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*< 128.13.0cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*< 141.0cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*≥ 140.0 < 140.1.0
Affected products
| Product | Versions |
|---|---|
| Mozilla · Firefox | unaffected 128.13 ≤ 128.* ; unaffected 140.1 ≤ 140.* ; unaffected 141 ≤ * |
| Mozilla · Thunderbird | unaffected 128.13 ≤ 128.* ; unaffected 140.1 ≤ 140.* ; unaffected 141 ≤ * |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |