XSS in Google Chrome
CVE-2026-17739
Insufficient policy enforcement in Extensions in Google Chrome prior to 151.0.7922.72 allowed an attacker who convinced a user to install a malicious extension to inject arbitrary scripts or HTML (UXSS) via a crafted Chrome Extension. (Chr…
Vulnerability class: XSS (Cross-Site Scripting)
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N.
Affected products
- Google Chrome — versions 151.0.7922.72
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-17739?
- CVE-2026-17739 is a medium-severity vulnerability in Google Chrome, classified under Cross-site Scripting. CVSS score: 4.2/10. Published 2026-07-30.
- How severe is CVE-2026-17739?
- Medium severity. CVSS v3 base score is 4.2 out of 10.