← Back

CVE-2025-5271

nvd nist
Published: May 27, 2025Modified: Apr 13, 2026

JSON object

Loading...
6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Exploitability: 3.9 / Impact: 2.5
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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 (1)

Products: Mozilla: Firefox
Mozilla
1 product
Firefox
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Firefox
Before 139.0

Related CWEs

CWE-116
Improper Encoding or Escaping of Output
The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.

References (3)

Source: security@mozilla.org
Permissions Required
Source: security@mozilla.org
Vendor Advisory
Source: security@mozilla.org

Timeline

No history available yet.