{"id":"CVE-2026-78997","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-78997","summary":"UC Browser for Android (package com.UCMobile.intl, version 13.7.8.1314) contains a Universal Cross-Site Scripting vulnerability that allows an attacker to execute arbitrary JavaScript…","details":"UC Browser for Android (package com.UCMobile.intl, version 13.7.8.1314) contains a Universal Cross-Site Scripting vulnerability that allows an attacker to execute arbitrary JavaScript in the context of any origin. An attacker hosts a specially crafted URL on a UC-owned domain (via a reflected XSS) that leverages the browser's internal JavaScript bridge to register a deferred callback, navigate the tab to a victim site, and then execute attacker-controlled code on that site when a login dialog is dismissed.","published":"2026-09-08T17:18:31.020","modified":"2026-09-09T19:17:47.723","cvss":{"score":9.3,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},"epss":{"score":0.00153,"percentile":0.04736,"asOf":"2026-09-09"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://gist.github.com/OmriInbar-Novee/9fd65fe08c1b1cff6a19350e44425de2"},{"type":"WEB","url":"https://gist.github.com/OmriInbar-Novee/ef7a92db148b2eb1ab0aa7b99a565c4c"},{"type":"WEB","url":"https://gist.github.com/OmriInbar-Novee/9fd65fe08c1b1cff6a19350e44425de2"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-09T19:17:47.723"}}