PT-2026-28414 · Seniorwalter · Web-Based Pharmacy Product Management System

Meifukun · Published 2026-03-27 · Updated 2026-03-27 · CVE-2026-30575

Mitre

CVSS v3.1

7.5

High

Base vector

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

A Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0 in the add-stock.php file. The application fails to validate the "txtqty" parameter during stock entry, allowing negative values to be processed. This causes the system to decrease the inventory level instead of increasing it, leading to inventory corruption and potential Denial of Service by depleting stock records.

Exploit

Fix

RCE

Weakness Enumeration

CWE-20

CWE-1284

Related Identifiers

CVE-2026-30575

Affected Products

Web-Based Pharmacy Product Management System

References · 2

• 🔥 https://github.com/meifukun/Web-Security-PoCs/blob/main/Pharmacy-Product-Management-System/Logic-AddStock-NegativeQty.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-30575 · Security Note