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CVE

CWE

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CVE-2026-4225

Published: Mar 16, 2026

Modified: Mar 16, 2026

PUBLISHED

CVSS v3.1

2.4

LOW

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.

Vendor	Product	Versions
n/a	CMS Made Simple	affected `2.2.0` affected `2.2.1` affected `2.2.2` affected `2.2.3` affected `2.2.4` +17 more versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

References

VDB-351148 | CMS Made Simple User Management listusers.php cross site scripting

vdb-entry

technical-description

VDB-351148 | CTI Indicators (IOB, IOC, TTP, IOA)

signature

permissions-required

Submit #770530 | cms made simple 2.2.21 XSS

third-party-advisory

https://github.com/feixuezhi/cms/wiki

exploit

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