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CVE-2026-4225

CMS Made Simple User Management listusers.php cross site scripting

LOW
2.4
CVSS Score
Published: March 16, 2026 at 07:32 AM UTC
Updated: June 17, 2026 at 10:56 AM UTC
1 product affected across 1 vendorCmsmadesimple

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Severity
LOW2.4
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

A security flaw has been discovered in CMS Made Simple up to 2.2.21. Impacted is an unknown function of the file admin/listusers.php of the component User Management Module. Performing a manipulation of the argument Message results in cross site scripting. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/?id.351148
SignaturePermissions Required
Source: cverecord
https://vuldb.com/?ctiid.351148
Third Party Advisory
Source: cverecord
https://vuldb.com/?submit.770530
Exploit
Source: cverecord
https://github.com/feixuezhi/cms/wiki

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.4LOWVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79CWE-94

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