CVE-2023-3740

Name: CVE-2023-3740
Creator: NVD / NIST
Published: 2023-08-01T23:15:33.793+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.55%

Last modified Jun 17, 2026

CVE-2023-3740 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Insufficient validation of untrusted input in Themes in Google Chrome prior to 115.0.5790.98 allowed a remote attacker to potentially serve malicious content to a user via a crafted background URL. (Chromium security severity: Low). EPSS estimates a 0.55% chance of exploitation in the next 30 days.

Description

Insufficient validation of untrusted input in Themes in Google Chrome prior to 115.0.5790.98 allowed a remote attacker to potentially serve malicious content to a user via a crafted background URL. (Chromium security severity: Low)

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.55%

41.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Google	Chrome	< 115.0.5790.98

References

https://chromereleases.googleblog.com/2023/07/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
https://crbug.com/1405223Exploit, Issue Tracking, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/
https://security.gentoo.org/glsa/202401-34
https://chromereleases.googleblog.com/2023/07/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
https://crbug.com/1405223Exploit, Issue Tracking, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/
https://security.gentoo.org/glsa/202401-34

Timeline

Published: Aug 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-3740?

How severe is CVE-2023-3740?

CVE-2023-3740 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.

How do I fix CVE-2023-3740?

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-2023-3740?

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

Scan your code now

Source: NVD / NIST