{"id":"CVE-2025-1939","title":"Android apps can load web pages using the Custom Tabs feature","summary":"Android apps can load web pages using the Custom Tabs feature. This feature supports a transition animation that could have been used to trick a user into granting sensitive permissions by hiding what the user was actually clicking. This…","severity":"low","cvss":3.9,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","cwe":["CWE-359"],"vendor":"mozilla","product":"firefox","affected":["firefox < 136.0"],"patched":["firefox 136.0"],"published":"2025-03-04","updated":"2026-09-30","sourceUpdated":"2026-09-30T19:10:01.007","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-1939","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1928334","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-14/","label":"security@mozilla.org"},{"url":"https://taptrap.click","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00187,"epssPercentile":0.07524,"ingestedAt":"2026-09-30T19:21:07.229Z","slug":"CVE-2025-1939","body":"## Overview\n\nAndroid apps can load web pages using the Custom Tabs feature. This feature supports a transition animation that could have been used to trick a user into granting sensitive permissions by hiding what the user was actually clicking. This vulnerability was fixed in Firefox 136.\n\n## Affected\n\n- `firefox < 136.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `firefox 136.0`","depth":"sunlit","depthScore":21,"depthScoreParts":{"impact":21.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}