CVE-2021-43657

5.4 mediumEPSS 0.8%

Medium (5.4) in simple client management system project simple client management system. EPSS 0.8% chance of exploitation in the next 30 days.

A Stored Cross-site scripting (XSS) vulnerability via MAster.php in Sourcecodetester Simple Client Management System (SCMS) 1.0 allows remote attackers to inject arbitrary web script or HTML via the vulnerable input fields.

Severity

CVSS 3.1

5.4 medium

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2022-12-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

simple_client_management_system_project:simple_client_management_system

References

https://github.com/c0n5n3d/CVE-2021-43657/blob/main/Info.txt
https://github.com/c0n5n3d/CVE-2021-43657/blob/main/Info.txt

Check your stack JSON