CVE-2021-4323: Google Chrome

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Insufficient validation of untrusted input in Extensions in Google Chrome prior to 90.0.4430.72 allowed an attacker who convinced a user to install a malicious extension to access local files via a crafted Chrome Extension. (Chromium security severity: Medium)

Affected products

• Google Chrome: before 90.0.4430.72 (fixed in 90.0.4430.72)

Published 2023-07-29. Last modified 2026-06-17.