CVE-2023-4460Public exploitNetwork attack vector

Stored XSS via unsanitized SVG uploads

Published Dec 4, 2023 · Updated Oct 1, 2024

Stored XSS in Uploading SVG, WEBP and ICO files 1.2.1 and earlier allows remote authenticated users to inject JavaScript via SVG uploads. The plugin permits Author-role users to upload SVG documents without sanitizing embedded script elements, then serves the files from attacker-accessible URLs. Execution requires another user to open an uploaded SVG URL, placing the script in that viewer's browser context; no direct service interruption is reported.

CVSS severity5.4
Medium
EPSS probability0.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Uploading SVG, WEBP and ICO files 1.2.1 and earlier allows remote authenticated users to inject JavaScript via SVG uploads. The plugin permits Author-role users to upload SVG documents without sanitizing embedded script elements, then serves the files from attacker-accessible URLs. Execution requires another user to open an uploaded SVG URL, placing the script in that viewer's browser context; no direct service interruption is reported.

The record

CVE
CVE-2023-4460
Published
Dec 4, 2023
Updated
Oct 1, 2024
Vendor
Dmitry Litvinov
Product
Uploading SVG, WEBP and ICO files
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 2024Record 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 <=1.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Dmitry Litvinov · Uploading SVG, WEBP and ICO filesversion=0 <=1.2.1

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/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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