EUVD-2026-17135
GHSA-4cq8-w5ch-hhg7
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
4DescriptionCVE.org
A Reflected Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Sales and Inventory System 1.0. The vulnerability is located in the index.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.
AnalysisAI
Reflected cross-site scripting (XSS) in SourceCodester Sales and Inventory System 1.0 allows remote attackers to inject arbitrary JavaScript or HTML through the 'msg' parameter in index.php. Publicly available proof-of-concept code exists, enabling attackers to craft malicious URLs that execute scripts in victim browsers when clicked. No CVSS vector or patch information is available; the vulnerability appears limited in scope to a single PHP parameter.
Technical ContextAI
This is a classic reflected XSS vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation) in a PHP-based inventory management application. The 'msg' parameter in index.php is passed directly to the response without sanitization or output encoding, allowing attacker-controlled input to be interpreted as executable script by the victim's browser. Reflected XSS differs from stored XSS in that the malicious payload is not persisted; instead, it must be delivered via a crafted URL in each attack. The vulnerability affects SourceCodester Sales and Inventory System version 1.0, a lightweight web application commonly used in small business environments.
RemediationAI
No vendor-released patch identified at time of analysis. Immediate remediation requires sanitizing and output-encoding all user input, particularly the 'msg' parameter in index.php using appropriate PHP functions such as htmlspecialchars() or a security-focused templating engine. Organizations should implement Content Security Policy (CSP) headers to restrict script execution, deploy a Web Application Firewall to filter malicious XSS payloads, and upgrade to a newer version of SourceCodester Sales and Inventory System if available from the vendor. Code review of other user-controlled parameters is recommended to identify similar vulnerabilities. Reference: https://github.com/meifukun/Web-Security-PoCs/blob/main/Inventory-System/XSS-Index-msg.md
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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