CVE-2026-30574

EUVD-2026-16706
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 16%
Affected Products (NVD)
VendorProductVersion
senior-walterweb-based_pharmacy_product_management_system
1.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/meifukun/Web-Security-PoCs/blob/main/Pharmacy-Product-Management-System/Logic-AddSales-Overselling.md