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CVE-2021-4323

MEDIUMCVSS 6.5/10EPSS 0.40%

Last modified

CVE-2021-4323 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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). EPSS estimates a 0.40% chance of exploitation in the next 30 days.

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)

Metrics

CVSS 3.1
6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Probability
0.40%

31.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
GoogleChrome< 90.0.4430.72

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-4323?
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)
How severe is CVE-2021-4323?
CVE-2021-4323 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.
How do I fix CVE-2021-4323?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4323?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST