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CVE-2025-11720

8.1 high SSVC exploitation: none Modified
NVD · CVE.org

The Firefox and Firefox Focus UI for the Android custom tab feature only showed the "site" that was loaded, not the full hostname. User supplied content hosted on a subdomain of a site could have been used to fool a user into thinking it was content from a different subdomain of that site. This vulnerability was fixed in Firefox 144.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 8.1 · mozillaNVD modified 2026-10-08 12:10

Affected (CPE criteria) 1

  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

References 3