High severity7.5NVD Advisory· Published Mar 27, 2026· Updated Mar 31, 2026
CVE-2026-30574
CVE-2026-30574
Description
A Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0 in the add-sales.php file. The application fails to verify if the requested sales quantity (txtqty) exceeds the available stock level. An attacker can manipulate the request to purchase a quantity that is significantly higher than the actual available stock.
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Affected products
2- cpe:2.3:a:senior-walter:web-based_pharmacy_product_management_system:1.0:*:*:*:*:*:*:*
- Range: =1.0
Patches
Vulnerability mechanics
References
1- github.com/meifukun/Web-Security-PoCs/blob/main/Pharmacy-Product-Management-System/Logic-AddSales-Overselling.mdnvdExploitThird Party Advisory
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