CVE-2025-10066: POS Point of Sale System XSS Vulnerability

CVE-2025-10066 Overview

CVE-2025-10066 is a reflected cross-site scripting (XSS) vulnerability in itsourcecode POS Point of Sale System 1.0. The flaw resides in the /inventory/main/vendors/datatables/unit_testing/templates/dymanic_table.php file, where the scripts parameter is rendered without proper sanitization. Remote attackers can inject arbitrary JavaScript by crafting a malicious URL and inducing a victim to click it. The exploit has been disclosed publicly, increasing the likelihood of opportunistic abuse against exposed installations. This weakness is classified under [CWE-79] Improper Neutralization of Input During Web Page Generation.

Critical Impact
Successful exploitation enables session hijacking, credential theft, and unauthorized actions performed in the victim's browser context within the POS application.

Affected Products

itsourcecode POS Point of Sale System version 1.0
dymanic_table.php template in the bundled DataTables unit_testing directory
Deployments exposing the vulnerable PHP endpoint to untrusted networks

Discovery Timeline

2025-09-07 - CVE-2025-10066 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-10066

Vulnerability Analysis

The vulnerability stems from unsanitized reflection of the scripts HTTP parameter into the HTML response generated by dymanic_table.php. The template file, located in the DataTables unit_testing folder, was never intended for production exposure and lacks output encoding. When the application echoes the attacker-supplied value into the page, the browser interprets any injected <script> tags or event handlers as executable content. Because the exploit requires user interaction, an attacker typically delivers the payload through phishing links, forum posts, or malicious redirects. The impact is limited to integrity of the rendered page, but within a Point of Sale context this can compromise cashier sessions and inventory operations.

Root Cause

The root cause is missing input validation and output encoding on the scripts request parameter. The PHP template writes the parameter directly into the response without applying htmlspecialchars() or a context-aware escaping function. Additionally, a test-harness file from a third-party JavaScript library ships in the production distribution, expanding the attack surface unnecessarily.

Attack Vector

An unauthenticated remote attacker crafts a URL targeting the vulnerable endpoint with a malicious value in the scripts query parameter. When an authenticated POS user clicks the link, the injected JavaScript executes in their browser session. The payload can read cookies, forge requests against the POS backend, or exfiltrate data displayed on the page. No credentials or prior access are required to build the attack payload. Refer to the GitHub CVE Report and VulDB entry #322989 for technical disclosure details.

Detection Methods for CVE-2025-10066

Indicators of Compromise

HTTP requests to /inventory/main/vendors/datatables/unit_testing/templates/dymanic_table.php containing scripts= with <script>, onerror=, or URL-encoded HTML tags
Web server access logs showing referrers from external domains directing users to the vulnerable path
Unexpected outbound requests from user browsers to attacker-controlled domains following POS session activity

Detection Strategies

Deploy web application firewall (WAF) signatures that flag reflected XSS patterns in query parameters targeting DataTables unit_testing paths
Alert on any production access to third-party library test harnesses, which should not be reachable in normal operation
Correlate authenticated POS sessions with anomalous JavaScript-initiated API calls that deviate from documented client behavior

Monitoring Recommendations

Enable verbose HTTP logging on the POS web tier and forward logs to a centralized analytics platform for URL-parameter inspection
Monitor Content Security Policy (CSP) violation reports for inline script executions originating from the POS domain
Track user-agent and geolocation anomalies on sessions that touch the vulnerable endpoint

How to Mitigate CVE-2025-10066

Immediate Actions Required

Remove or block external access to the /inventory/main/vendors/datatables/unit_testing/ directory at the web server level
Restrict the POS application to trusted internal networks and require VPN access for remote administration
Instruct staff to avoid clicking untrusted links while authenticated to the POS console

Patch Information

No vendor patch has been published for itsourcecode POS Point of Sale System 1.0 at the time of writing. Operators should apply compensating controls until a fixed release becomes available. Review the VulDB advisory periodically for updated remediation guidance.

Workarounds

Delete the unit_testing directory shipped with the bundled DataTables library, as it is not required for production functionality
Add server-side input filtering to strip HTML metacharacters from the scripts parameter before rendering
Deploy a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins

bash

# Apache configuration example to block access to the vulnerable path
<LocationMatch "/inventory/main/vendors/datatables/unit_testing/">
    Require all denied
</LocationMatch>

# Add a Content Security Policy header to mitigate reflected XSS
Header always set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'"