CVE-2025-5271

MediumCVSS 6.5/10Last modified Sep 30, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-116

Affected software

No affected versions have been published.

Timeline

Published: May 27, 2025
Last modified: Sep 30, 2026
NVD status: Modified

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