CVE-2023-3740Network attack vector

Malicious content delivery via crafted background URL

Published Aug 1, 2023 · Updated Feb 13, 2025

Insufficient input validation in Google Chrome Themes before 115.0.5790.98 allows remote attackers to serve malicious content via a background URL. Google identifies the Themes component and crafted URL, but the referenced Chromium issue discloses no public code locus or failed validation operation. Exploitation requires user interaction; the published consequence is limited to attacker-controlled content delivery and browser-content integrity.

CVSS severity4.3
Medium
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient input validation in Google Chrome Themes before 115.0.5790.98 allows remote attackers to serve malicious content via a background URL. Google identifies the Themes component and crafted URL, but the referenced Chromium issue discloses no public code locus or failed validation operation. Exploitation requires user interaction; the published consequence is limited to attacker-controlled content delivery and browser-content integrity.

The record

CVE
CVE-2023-3740
Published
Aug 1, 2023
Updated
Feb 13, 2025
Vendor
Google Cloud
Product
Google Chrome
Classifications
T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 1, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=115.0.5790.98 <115.0.5790.98

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=115.0.5790.98 <115.0.5790.98

Published CVSS scores

4.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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