CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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4Description
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.
Analysis
Pharmacy Product Management System 1.0 accepts negative price and total cost values in sales transactions due to insufficient input validation in add-sales.php, enabling attackers to manipulate financial records, corrupt sales reports, and cause financial loss. The vulnerability allows unauthenticated or low-privilege users to submit arbitrary negative values that bypass business logic controls. …
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External POC / Exploit Code
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EUVD-2026-17901