VULNERABILITY INTELLIGENCE
CVE-2025-3859
CVSS score6.1 MEDIUM
EPSS probability0.21%
CISA KEVNot currently listed
Published2025-04-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Description
Websites directing users to long URLs that caused eliding to occur in the location view could leverage the truncating behavior to potentially trick users into thinking they were on a different webpage. This vulnerability was fixed in Focus 138.
Weakness classification
- nvd@nist.gov: CWE-601
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-451
Primary references
- security@mozilla.org — Issue Tracking
- security@mozilla.org — Vendor Advisory