CVEvulnerability
CVE-2025-5271
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2025-05-27
- Last modified
- 2026-09-30
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-116
Description
Previewing a response in Devtools ignored CSP headers, which could have allowed content injection attacks. This vulnerability was fixed in Firefox 139 and Thunderbird 139.
Affected configurations
• mozilla firefox (< 139.0)
Related
Weakness · CWE (1)
- CWE-116 Improper Encoding or Escaping of Output weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1920348 Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-42/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-45/ www.mozilla.org