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CVE PROGRAM SOURCE RECORD4.3 Medium

CVE-2025-3859

Firefox Focus elide URL allows address bar spoofing

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mozilla Focus

  • 138 to ≤ *unaffected

References