VULNERABILITY INTELLIGENCE

CVE-2025-11712

CVSS score6.1 MEDIUM
EPSS probability0.22%
CISA KEVNot currently listed
Published2025-10-14
Last modified2026-10-23
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-116

Primary references