CVE-2026-30557 — MEDIUM (6.1)

Vulnerability Description

A Reflected Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Sales and Inventory System 1.0. The vulnerability is located in the add_category.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.

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Ahsanriaz26Gmailcom	Sales And Inventory System	1.0

Related Weaknesses (CWE)

CWE-79

References

https://github.com/meifukun/Web-Security-PoCs/blob/main/Inventory-System/XSS-AddExploitThird Party Advisory

FAQ

What is CVE-2026-30557?

CVE-2026-30557 is a vulnerability with a CVSS score of 6.1 (MEDIUM). A Reflected Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Sales and Inventory System 1.0. The vulnerability is located in the add_category.php file via the "msg" parameter. The app...

How severe is CVE-2026-30557?

CVE-2026-30557 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-30557?

Check the references section above for vendor advisories and patch information. Affected products include: Ahsanriaz26Gmailcom Sales And Inventory System.