CVE-2023-3740

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-08-01 · updated 2026-06-17

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)

Affected products

Google Chrome: before 115.0.5790.98 — fixed in 115.0.5790.98

How to fix

Upgrade to a fixed version: Google Chrome 115.0.5790.98. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2023/07/stable-channel-update-for-desktop.html
https://crbug.com/1405223
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.html
https://crbug.com/1405223
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/
https://security.gentoo.org/glsa/202401-34

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