CVE-2023-2462Network attack vector

Origin spoofing via opaque-origin Web Serial prompts

Published May 2, 2023 · Updated Feb 13, 2025

Origin spoofing in Google Chrome before 113.0.5672.63 allows remote attackers to obscure the main origin through a crafted HTML page. The Web Serial API builds permission prompts from the top-level document's origin even when that document has an opaque origin that cannot be formatted for display. A user must visit the page and encounter the prompt, where the obscured requester identity can mislead a permission decision.

CVSS severity4.3
Medium
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Origin spoofing in Google Chrome before 113.0.5672.63 allows remote attackers to obscure the main origin through a crafted HTML page. The Web Serial API builds permission prompts from the top-level document's origin even when that document has an opaque origin that cannot be formatted for display. A user must visit the page and encounter the prompt, where the obscured requester identity can mislead a permission decision.

The record

CVE
CVE-2023-2462
Published
May 2, 2023
Updated
Feb 13, 2025
Vendor
Google Cloud
Product
Google Chrome
Classifications
T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 2, 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=113.0.5672.63 <113.0.5672.63

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=113.0.5672.63 <113.0.5672.63

Published CVSS scores

4.3NIST NVDCVSS: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.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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