CVE-2025-15109Public exploitNetwork attack vector

Unauthenticated code execution via unrestricted file upload

Published Dec 27, 2025 · Updated Dec 27, 2025

Unrestricted file upload in JackQ XCMS allows remote attackers to execute code through the public Plupload example endpoint. Public/javascripts/admin/plupload-2.1.2/examples/upload.php appends the untrusted name parameter to $filePath and writes the uploaded content without validating its type, extension, or destination. No authentication is required; a PHP web shell placed under the web root executes when requested over HTTP.

CVSS severity7.3
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Unrestricted file upload in JackQ XCMS allows remote attackers to execute code through the public Plupload example endpoint. Public/javascripts/admin/plupload-2.1.2/examples/upload.php appends the untrusted name parameter to $filePath and writes the uploaded content without validating its type, extension, or destination. No authentication is required; a PHP web shell placed under the web root executes when requested over HTTP.

The record

CVE
CVE-2025-15109
Published
Dec 27, 2025
Updated
Dec 27, 2025
Vendor
JackQ
Product
XCMS
Classifications
CWE-284, CWE-434, T1190, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=3fab5342cc509945a7ce1b8ec39d19f701b89261

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JackQ · XCMSversion=3fab5342cc509945a7ce1b8ec39d19f701b89261

Published CVSS scores

5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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 exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application
T1505.003Web Shell

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo