Low severity2.4NVD Advisory· Published Mar 16, 2026· Updated Apr 29, 2026

CVE-2026-4225

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Feixuezhi/CMSreferences
Simple CMS/Simple CMSllm-fuzzy
Range: <=2.2.21

Patches

Vulnerability mechanics

References

News mentions

No linked articles in our index yet.

Severity

LowCVSS v3.1

2.4/ 10

CVSS v41.9

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack vector: Network
Complexity: Low
Privileges: High
User interaction: Required
Scope: Unchanged
Confidentiality: None
Integrity: Low
Availability: None

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N

Affected

Source repo: github.com/feixuezhi/cms/wiki

EPSS

Probability of exploitation in the next 30 days.

0.21%

VYPR risk score

Composite of severity, exploitation, and reach.

0.16low

cvss	0.156
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94
Improper Control of Generation of Code ('Code Injection')

CVE ID

CVE-2026-4225

Credits

F(
feioklucy (VulDB User)
reporter