CVE-2026-4225

Monday, March 16, 2026

4.8

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

Summary

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 Software

Vendor	Product	Version Range	Status
n/a	CMS Made Simple	`2.2.0`	affected
n/a	CMS Made Simple	`2.2.1`	affected
n/a	CMS Made Simple	`2.2.2`	affected
n/a	CMS Made Simple	`2.2.3`	affected
n/a	CMS Made Simple	`2.2.4`	affected
n/a	CMS Made Simple	`2.2.5`	affected
n/a	CMS Made Simple	`2.2.6`	affected
n/a	CMS Made Simple	`2.2.7`	affected
n/a	CMS Made Simple	`2.2.8`	affected
n/a	CMS Made Simple	`2.2.9`	affected
n/a	CMS Made Simple	`2.2.10`	affected
n/a	CMS Made Simple	`2.2.11`	affected
n/a	CMS Made Simple	`2.2.12`	affected
n/a	CMS Made Simple	`2.2.13`	affected
n/a	CMS Made Simple	`2.2.14`	affected
n/a	CMS Made Simple	`2.2.15`	affected
n/a	CMS Made Simple	`2.2.16`	affected
n/a	CMS Made Simple	`2.2.17`	affected
n/a	CMS Made Simple	`2.2.18`	affected
n/a	CMS Made Simple	`2.2.19`	affected
n/a	CMS Made Simple	`2.2.20`	affected
n/a	CMS Made Simple	`2.2.21`	affected

Weaknesses

CWE-79: Cross Site Scripting
CWE-94: Code Injection

ADP Enrichment

CISA ADP Vulnrichment

SSVC:
Exploitation: poc
- Automatable: no
- Technical Impact: partial

References

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