Low severity · published Mar 16, 2026
CVE-2026-4225
CMS Made Simple User Management listusers.php cross site scripting
2.4
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CM
CMS Made Simple · Cms Made Simple
2.2.0; 2.2.1; 2.2.2; 2.2.3; 2.2.4; 2.2.5; +16 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4225
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4225
github.com
https://github.com/feixuezhi/cms/wiki
vuldb.com
https://vuldb.com/?ctiid.351148
vuldb.com
https://vuldb.com/?id.351148
vuldb.com
https://vuldb.com/?submit.770530
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