CVE-2026-24350Network attack vector

Stored script execution via active SVG uploads

Published Feb 27, 2026 · Updated Feb 27, 2026

Stored XSS in PluXml CMS 5.8.21 and 5.9.0-rc7 allows remote authenticated users to run JavaScript via uploaded SVG files. The media upload functionality accepts an SVG containing active script and stores it where a browser can render the payload without neutralization. A victim must open the uploaded image link in 5.8.21 or directly access the file in 5.9.0-rc7, enabling script execution in the site's origin.

CVSS severity5.1
Medium
EPSS probability0.17%
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 PluXml CMS 5.8.21 and 5.9.0-rc7 allows remote authenticated users to run JavaScript via uploaded SVG files. The media upload functionality accepts an SVG containing active script and stores it where a browser can render the payload without neutralization. A victim must open the uploaded image link in 5.8.21 or directly access the file in 5.9.0-rc7, enabling script execution in the site's origin.

The record

CVE
CVE-2026-24350
Published
Feb 27, 2026
Updated
Feb 27, 2026
Vendor
PluXml
Product
PluXml
Classifications
CWE-79, T1204.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 2026Record 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=5.8.21
  2. Affected versionversion=5.9.0-rc7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

PluXml · PluXmlversion=5.8.21; version=5.9.0-rc7

Published CVSS scores

5.1CERT.PLCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.002User Execution: Malicious File

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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