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Vulnerability record · CVE-2026-30573 · published 1 April 2026

CVE-2026-30573: Senior-walter web-based pharmacy product management system vulnerability

SSenior Walter · Web Based Pharmacy Product Management System

A Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0. The vulnerability is located in the add-sales.php file. The application fails to validate the "txtprice" and "txttotalcost" parameters, allowing attackers to submit negative values for sales transactions. This leads to incorrect financial calculations, corruption of sales reports, and potential financial loss.

7.5 CVSS 3.1 High EPSS 0.38% · top 70.4% CWE-1284 · CWE-1284
7.5CVSS 3.1 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0. The vulnerability is located in the add-sales.php file. The application fails to validate the "txtprice" and "txttotalcost" parameters, allowing attackers to submit negative values for sales transactions. This leads to incorrect financial calculations, corruption of sales reports, and potential financial loss.

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

Affected products

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

References

LinkTags
https://github.com/meifukun/Web-Security-PoCs/blob/main/Pharmacy-Product-Management-System/Logic-AddSales-NegativePrice. ExploitThird Party Advisory

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Related vulnerabilities

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

8.8CVE-2025-63712Senior-walter web-based pharmacy product management system cross-site request forgery vulnerabilityCross-Site Request Forgery (CSRF) in SourceCodester Product Expiry Management System. The User Management module (delete-user.php) allows remote atta…EPSS 0.21%8.6CVE-2025-45997Senior-walter web-based pharmacy product management system unrestricted file upload vulnerabilitySourcecodester Web-based Pharmacy Product Management System v.1.0 has a file upload vulnerability. An attacker can upload a PHP file disguised as an …EPSS 0.49%8.1CVE-2025-56274Senior-walter web-based pharmacy product management system improper access control vulnerabilitySourceCodester Web-based Pharmacy Product Management System 1.0 is vulnerable to Incorrect Access Control, which allows low-privileged users to forge…EPSS 0.42%7.5CVE-2026-30576Senior-walter web-based pharmacy product management system improper input validation vulnerabilityA Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0 in the add-stock.php file. The application fails to va…EPSS 0.38%7.5CVE-2026-30574Senior-walter web-based pharmacy product management system vulnerabilityA Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0 in the add-sales.php file. The application fails to ve…EPSS 0.38%7.5CVE-2026-30575Senior-walter web-based pharmacy product management system improper input validation vulnerabilityA Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0 in the add-stock.php file. The application fails to va…EPSS 0.49%6.9CVE-2025-3729Senior-walter web-based pharmacy product management system command injection vulnerabilityA vulnerability, which was classified as critical, has been found in SourceCodester Web-based Pharmacy Product Management System 1.0. This issue affe…EPSS 3.3%6.9CVE-2025-3694Senior-walter web-based pharmacy product management system injection vulnerabilityA vulnerability classified as critical has been found in SourceCodester Web-based Pharmacy Product Management System 1.0. This affects an unknown par…EPSS 0.64%

Source: NIST National Vulnerability Database (record CVE-2026-30573), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.