{"id":"CVE-2025-12445","title":"Policy bypass in Extensions in Google Chrome prior to 142.0.7444.59 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension","summary":"Policy bypass in Extensions in Google Chrome prior to 142.0.7444.59 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Low)","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-288"],"vendor":"google","product":"chrome","affected":["chrome < 142.0.7444.59"],"patched":["chrome 142.0.7444.59"],"published":"2025-11-10","updated":"2026-09-30","sourceUpdated":"2026-09-30T17:10:00.187","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-12445","references":[{"url":"https://chromereleases.googleblog.com/2025/10/stable-channel-update-for-desktop_28.html","label":"chrome-cve-admin@google.com"},{"url":"https://issues.chromium.org/issues/428397712","label":"chrome-cve-admin@google.com"}],"tags":["nvd"],"epss":0.00141,"epssPercentile":0.02846,"ingestedAt":"2026-09-30T17:13:20.729Z","slug":"CVE-2025-12445","body":"## Overview\n\nPolicy bypass in Extensions in Google Chrome prior to 142.0.7444.59 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Low)\n\n## Affected\n\n- `chrome < 142.0.7444.59`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `chrome 142.0.7444.59`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}