#VU116996 Protection mechanism failure in Mozilla products - CVE-2025-11712
Published: October 14, 2025
Vulnerability identifier: #VU116996
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-11712
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Firefox ESR
Firefox for Android
Mozilla Firefox
Firefox ESR
Firefox for Android
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures. A malicious page can use the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This can lead to an XSS on a site that unsafely serves files without a content-type header.
Remediation
Install updates from vendor's website.