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Vulnerability record · CVE-2021-43657 · published 22 December 2022

CVE-2021-43657: Simple client management system project simple client management system cross-site scripting vulnerability

SSimple Client Management System Project · Simple Client Management System

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.

5.4 CVSS 3.1 Medium EPSS 0.72% · top 48.1% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score
0.72%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/c0n5n3d/CVE-2021-43657/blob/main/Info.txt Third Party Advisory
https://github.com/c0n5n3d/CVE-2021-43657/blob/main/Info.txt Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-29749Simple client management system project simple client management system sql injection vulnerabilitySimple Client Management System 1.0 is vulnerable to SQL Injection via /cms/classes/Master.php?f=delete_invoice.EPSS 1.6%9.8CVE-2022-29750Simple client management system project simple client management system sql injection vulnerabilitySimple Client Management System 1.0 is vulnerable to SQL Injection via /cms/classes/Master.php?f=delete_service.EPSS 1.6%9.8CVE-2022-29751Simple client management system project simple client management system sql injection vulnerabilitySimple Client Management System 1.0 is vulnerable to SQL Injection via /cms/classes/Master.php?f=delete_client.EPSS 1.6%9.8CVE-2022-29979Simple client management system project simple client management system sql injection vulnerabilitySimple Client Management System 1.0 is vulnerable to SQL Injection via /cms/classes/Master.php?f=delete_designation.EPSS 1.6%9.8CVE-2022-29980Simple client management system project simple client management system sql injection vulnerabilitySimple Client Management System 1.0 is vulnerable to SQL Injection via /cms/admin/?page=user/manage_user&id=.EPSS 1.6%9.8CVE-2022-29981Simple client management system project simple client management system sql injection vulnerabilitySimple Client Management System 1.0 is vulnerable to SQL Injection via /cms/classes/Users.php?f=delete.EPSS 1.6%9.8CVE-2022-29982Simple client management system project simple client management system sql injection vulnerabilitySimple Client Management System 1.0 is vulnerable to SQL Injection via /cms/admin/maintenance/manage_service.php?id=.EPSS 1.6%9.8CVE-2022-29983Simple client management system project simple client management system sql injection vulnerabilitySimple Client Management System 1.0 is vulnerable to SQL Injection via /cms/admin/?page=invoice/view_invoice&id=.EPSS 1.6%

Source: NIST National Vulnerability Database (record CVE-2021-43657), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.