CVE-2026-4225CWE-79CWE-94

CMS Made Simple User Management listusers.php cross site scripting

Medium · published March 16, 2026

CVSS v4.0
4.8
EPSS
0%
Percentile
29.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
4.8 · MEDIUM
Vector
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
EPSS
0.00363 · 29.0th percentile
Weaknesses
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'); CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-03-16T07:32Z
EPSS history
Timeline
  • 16 MAR 07:32Z
    CMS Made Simple User Management listusers.php cross site scripting
    cvelistv5