What is CVE-2026-15128?

CVE-2026-15128 is a medium-severity vulnerability in Google Chrome, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-07-08.

How severe is CVE-2026-15128?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Google Chrome

CVE-2026-15128

Inappropriate implementation in Forms in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Google Chrome — versions 150.0.7871.115

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

chrome-cve-admin@google.com (Release Notes, Vendor Advisory)
chrome-cve-admin@google.com (Permissions Required)

Frequently asked questions

What is CVE-2026-15128?: CVE-2026-15128 is a medium-severity vulnerability in Google Chrome, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-07-08.
How severe is CVE-2026-15128?: Medium severity. CVSS v3 base score is 6.1 out of 10.