Summaryinfo

A vulnerability labeled as problematic has been found in SourceCodester Sales and Inventory System 1.0. Affected is an unknown function of the file add_purchase.php of the component Parameter Handler. The manipulation of the argument msg results in cross site scripting. This vulnerability is known as CVE-2026-30561. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in SourceCodester Sales and Inventory System 1.0. It has been classified as problematic. Affected is an unknown part of the file add_purchase.php of the component Parameter Handler. The manipulation of the argument msg with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

A Reflected Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Sales and Inventory System 1.0. The vulnerability is located in the add_purchase.php file via the "msg" parameter. The application fails to sanitize the input, allowing remote attackers to inject arbitrary web script or HTML via a crafted URL.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-30561 since 03/04/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

By approaching the search of inurl:add_purchase.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• SourceCodester

Name

• Sales and Inventory System

Version

• 1.0

License

• free

Website

• Vendor: https://www.sourcecodester.com/

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