Submit #916037: 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 Vendor Management module located at /api/vendors_handler.php does not sanitize or encode vendor input fields before storing them in the database. When the vendor list is rendered at /vendors.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)> into vendor fields via an intercepted POST request, causing session cookie theft and account takeover for any user who visits the Vendor Management page.
Source⚠️ https://gist.github.com/fhewm98/5eaa9df770357351917f4538a3032eb7
User
 Mohammed Faheem (UID 100387)
Submission08/05/2026 13:12 (1 month ago)
Moderation09/13/2026 07:14 (1 month later)
StatusAccepted
VulDB entry403228 [SourceCodester Inventory Management System 1.0 Vendor Management /api/vendors_handler.php cross site scripting]
Points20

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