What’s Vulnerable › Vulnerabilities

CVE-2021-4323

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-07-29 · updated 2026-06-17

Description

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

How to fix

Upgrade to a fixed version: Google Chrome 90.0.4430.72. Check the vendor advisory for mitigations.

References

• https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_14.html
• https://crbug.com/1176031
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/
• https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_14.html
• https://crbug.com/1176031
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/

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