VULNERABILITY INTELLIGENCE
CVE-2026-2803
CVSS score7.5 HIGH
EPSS probability0.29%
CISA KEVNot currently listed
Published2026-02-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
Information disclosure, mitigation bypass in the Settings UI component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
Weakness classification
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- CWE-693: Protection Mechanism Failure
Primary references
- security@mozilla.org — Permissions Required
- security@mozilla.org — Vendor Advisory
- security@mozilla.org — Vendor Advisory