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Vulnerability record · CVE-2021-43510 · published 1 February 2022

CVE-2021-43510: Simple client management system project simple client management system sql injection vulnerability

SSimple Client Management System Project · Simple Client Management System

SQL Injection vulnerability exists in Sourcecodester Simple Client Management System 1.0 via the username field in login.php.

9.8 CVSS 3.1 Critical EPSS 7.5% · top 5.7% CWE-89 · SQL injection
9.8CVSS 3.1 base score, v2 7.5
7.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

SQL Injection vulnerability exists in Sourcecodester Simple Client Management System 1.0 via the username field in login.php.

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

Affected products

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

References

LinkTags
https://github.com/r4hn1/Simple-Client-Management-System-Exploit/blob/main/CVE-2021-43510 ExploitThird Party Advisory
https://r4hn1.medium.com/journey-to-first-two-cve-by-rahul-kalnarayan-307e2e87ee26 ExploitThird Party Advisory
https://github.com/r4hn1/Simple-Client-Management-System-Exploit/blob/main/CVE-2021-43510 ExploitThird Party Advisory
https://r4hn1.medium.com/journey-to-first-two-cve-by-rahul-kalnarayan-307e2e87ee26 ExploitThird 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-2021-43510), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.