Home

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.

PUBLISHED Reserved 2026-03-15 | Published 2026-03-16 | Updated 2026-03-16 | Assigner VulDB




MEDIUM: 4.8CVSS: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
LOW: 2.4CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C
LOW: 2.4CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C
3.3AV:N/AC:L/Au:M/C:N/I:P/A:N/E:POC/RL:ND/RC:C

Problem types

Cross Site Scripting

Code Injection

Timeline

2026-03-15:Advisory disclosed
2026-03-15:VulDB entry created
2026-03-15:VulDB entry last update

Credits

feioklucy (VulDB User) reporter

References

vuldb.com/?id.351148 (VDB-351148 | CMS Made Simple User Management listusers.php cross site scripting) vdb-entry technical-description

vuldb.com/?ctiid.351148 (VDB-351148 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.770530 (Submit #770530 | cms made simple 2.2.21 XSS) third-party-advisory

github.com/feixuezhi/cms/wiki exploit

cve.org (CVE-2026-4225)

nvd.nist.gov (CVE-2026-4225)

Download JSON