Submit #916013: SourceCodester Inventory Management System 1.0 Cross Site Scriptinginfo

TitleSourceCodester Inventory Management System 1.0 Cross Site Scripting
DescriptionA stored Cross-Site Scripting (XSS) vulnerability exists in Product Inventory Management System by SourceCodester. The Customer Management module located at /api/customers_handler.php does not sanitize or encode the Customer_Name parameter before storing it in the database. When the customer list is rendered at /customers.php, the stored payload executes in the victim's browser. An authenticated attacker can inject a malicious payload such as <img src=x onerror=alert(document.cookie)> via an intercepted POST request, causing session cookie theft and account takeover for any user who visits the Customer Management page.
Source⚠️ https://gist.github.com/fhewm98/46580c8919d2144e2e5e7598e54df868
User
 Mohammed Faheem (UID 100387)
Submission08/05/2026 12:59 (1 month ago)
Moderation09/13/2026 07:14 (1 month later)
StatusAccepted
VulDB entry403227 [SourceCodester Inventory Management System 1.0 Customer Management customers_handler.php Customer_Name cross site scripting]
Points20

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