{"id":"CVE-2026-13999","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-13999","generatedAt":"2026-10-28T08:11:15.084Z","title":"Insufficient validation of untrusted input in Extensions in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to perform UI spoofing via a crafted Chrome Extension.","description":"Insufficient validation of untrusted input in Extensions in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to perform UI spoofing via a crafted Chrome Extension. (Chromium security severity: Medium)","published":"2026-06-30T23:17:13.000Z","lastModified":"2026-10-25T21:10:01.000Z","status":"Analyzed","sourceIdentifier":"chrome-cve-admin@google.com","cvss":{"version":"3.1","score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"},"cwe":["CWE-20"],"affected":["google/chrome"],"epss":{"score":0.00187,"percentile":0.08188,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html","tags":["Release Notes"],"source":"chrome-cve-admin@google.com"},{"url":"https://issues.chromium.org/issues/514071697","tags":["Permissions Required"],"source":"chrome-cve-admin@google.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-13999","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}