CVE-2023-22461Public exploitNetwork attack vector

Cross-site scripting via incomplete SVG deny-list

Published Jan 4, 2023 · Updated Mar 10, 2025

Cross-site scripting in @mattkrick/sanitize-svg before 0.4.0 allows context-dependent attackers to run script through crafted SVG files. The sanitizeSVG function checks only root on-event attributes and literal script elements, allowing JavaScript-bearing anchor and foreignObject elements to pass unchanged. Exploitation requires a downstream application to accept the sanitized SVG and expose it to a browser; resulting script runs in that application's origin context.

CVSS severity7.6
High
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in @mattkrick/sanitize-svg before 0.4.0 allows context-dependent attackers to run script through crafted SVG files. The sanitizeSVG function checks only root on-event attributes and literal script elements, allowing JavaScript-bearing anchor and foreignObject elements to pass unchanged. Exploitation requires a downstream application to accept the sanitized SVG and expose it to a browser; resulting script runs in that application's origin context.

The record

CVE
CVE-2023-22461
Published
Jan 4, 2023
Updated
Mar 10, 2025
Vendor
Matt Krick
Product
@mattkrick/sanitize-svg
Classifications
CWE-80, CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 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=< 0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Matt Krick · @mattkrick/sanitize-svgversion=< 0.4

Published CVSS scores

7.6GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

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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