CVE-2026-78060: Stock Management System 1.0 XSS Vulnerability

CVE-2026-78060 Overview

CVE-2026-78060 is a cross-site scripting (XSS) vulnerability in SourceCodester Stock Management System 1.0. The flaw resides in the /php_action/getOrderReport.php script, where the clientName and clientContact parameters are not properly sanitized before being reflected to the browser. Remote attackers can inject malicious JavaScript payloads that execute in the context of a victim's session when the crafted request is triggered. The vulnerability has been publicly disclosed and exploit details are available, though user interaction is required for successful exploitation. This weakness is classified under CWE-79: Improper Neutralization of Input During Web Page Generation.

Critical Impact
Successful exploitation enables session-context script execution, allowing theft of authentication cookies, defacement of report pages, and phishing attacks against users of the Stock Management System.

Affected Products

SourceCodester Stock Management System 1.0
Vulnerable component: /php_action/getOrderReport.php
Vulnerable parameters: clientName and clientContact

Discovery Timeline

2026-08-23 - CVE-2026-78060 published to NVD
2026-08-26 - Last updated in NVD database

Technical Details for CVE-2026-78060

Vulnerability Analysis

The vulnerability is a reflected cross-site scripting flaw in the order reporting endpoint of the Stock Management System. When a request reaches /php_action/getOrderReport.php, the application reads the clientName and clientContact request parameters and returns them to the client as part of the generated report output. The absence of output encoding or input validation on these values allows arbitrary HTML and JavaScript to be rendered inside the response page.

An attacker can craft a URL or form submission containing a script payload in either parameter and deliver it to a target user. When the victim loads the crafted request, the injected script runs under the origin of the vulnerable application. According to the published EPSS data, real-world exploitation likelihood remains low, but public proof-of-concept material is available.

Root Cause

The root cause is missing contextual output encoding on user-controlled input inside getOrderReport.php. The endpoint concatenates the clientName and clientContact values directly into the HTML response without applying htmlspecialchars() or an equivalent escaping function. No allow-list validation is performed on the parameter values before they are echoed.

Attack Vector

Exploitation is remote and requires user interaction, typically through a phishing link or a crafted third-party page that submits the malicious request. The attacker embeds JavaScript within the clientName or clientContact parameter and induces an authenticated user to visit the URL. The injected script then executes in the browser session of the victim, providing access to cookies, DOM content, and any authenticated actions permitted to that user.

Because no verified patch code or exploit script is published in the referenced advisories, refer to the VulDB entry for CVE-2026-78060 and the GitHub issue report for available technical details.

Detection Methods for CVE-2026-78060

Indicators of Compromise

HTTP requests to /php_action/getOrderReport.php containing <script>, onerror=, onload=, or javascript: substrings in the clientName or clientContact parameters.
URL-encoded XSS payloads such as %3Cscript%3E or %3Cimg%20src targeting the same endpoint.
Referrer headers on requests to this endpoint originating from external, untrusted domains.

Detection Strategies

Deploy web application firewall (WAF) rules that inspect query and body parameters submitted to /php_action/getOrderReport.php for common XSS signatures.
Enable verbose web server access logging and alert on request bodies or query strings containing HTML tag characters in the affected parameters.
Correlate suspicious requests with subsequent anomalous session activity such as cookie exports or unexpected privilege changes.

Monitoring Recommendations

Monitor authentication logs for session reuse from unexpected IP addresses following visits to the order reporting endpoint.
Enable Content Security Policy (CSP) violation reporting to capture blocked script executions on report pages.
Track outbound HTTP requests from user browsers to unknown domains that could indicate cookie exfiltration.

How to Mitigate CVE-2026-78060

Immediate Actions Required

Restrict access to /php_action/getOrderReport.php to authenticated internal users through network segmentation or authentication middleware.
Deploy a WAF rule that blocks requests to the endpoint when clientName or clientContact contain HTML metacharacters.
Educate users of the Stock Management System to avoid clicking untrusted links referencing the application.

Patch Information

No vendor patch is referenced in the NVD entry for CVE-2026-78060 at the time of publication. SourceCodester Stock Management System 1.0 users should review the SourceCodester project page for updates and apply source-level fixes that encode output for the affected parameters.

Workarounds

Modify getOrderReport.php to pass clientName and clientContact through htmlspecialchars($value, ENT_QUOTES, 'UTF-8') before rendering.
Add a server-side allow-list that rejects any parameter value containing <, >, ", ', or / characters unless required by business logic.
Enforce a strict Content Security Policy that disallows inline script execution on report pages.

bash

# Example Apache mod_security rule blocking XSS payloads on the affected endpoint
SecRule REQUEST_URI "@contains /php_action/getOrderReport.php" \
    "phase:2,deny,status:403,id:1026078060,\
    chain,msg:'CVE-2026-78060 XSS attempt blocked'"
    SecRule ARGS:clientName|ARGS:clientContact "@rx (?i)(<script|onerror=|onload=|javascript:)"