CVE-2019-25265: Online Inventory Manager XSS Vulnerability

CVE-2019-25265 Overview

Online Inventory Manager 3.2 contains a stored cross-site scripting (XSS) vulnerability in the group description field within the admin edit groups section. This vulnerability allows attackers with authenticated access to inject malicious JavaScript code through the description field. When other users view the groups page, the stored malicious script executes in their browser context, potentially leading to cookie theft, session hijacking, and unauthorized client-side script execution.

Critical Impact

Authenticated attackers can persistently inject malicious scripts that execute whenever users access the affected admin groups page, enabling session hijacking and credential theft.

Affected Products

• Online Inventory Manager version 3.2
• BigProf Online Inventory Manager application

Discovery Timeline

• 2026-02-03 - CVE CVE-2019-25265 published to NVD
• 2026-02-04 - Last updated in NVD database

Technical Details for CVE-2019-25265

Vulnerability Analysis

This stored cross-site scripting vulnerability (CWE-79) exists in the Online Inventory Manager application's administrative interface. The vulnerable component is the group description field located in the admin edit groups section. The application fails to properly sanitize or encode user-supplied input before storing it in the database and subsequently rendering it on the groups management page.

When an administrator or authorized user inputs data into the group description field, the application accepts arbitrary content including JavaScript code without proper input validation or output encoding. This malicious content is then stored persistently in the application's database. Each time the groups page is rendered for any user, the stored script payload executes within the victim's browser session.

The attack requires network access and user interaction (the victim must navigate to the affected page), but once the payload is stored, it will execute automatically for all users viewing the compromised content.

Root Cause

The root cause of this vulnerability is improper input validation and missing output encoding (CWE-79) in the group description field processing logic. The application does not sanitize special characters such as <, >, ", and ' when accepting user input, nor does it apply proper HTML entity encoding when rendering the stored content back to users. This allows script tags and JavaScript event handlers to be interpreted as executable code rather than being displayed as plain text.

Attack Vector

The attack vector is network-based and requires authenticated access to the admin edit groups functionality. An attacker with valid credentials can navigate to the group management section and inject a crafted JavaScript payload into the group description field. The payload is stored in the database and executed whenever any user accesses the groups page.

A typical attack scenario involves injecting script content such as JavaScript code that steals session cookies and transmits them to an attacker-controlled server. The attacker could also inject code that performs actions on behalf of the victim user, potentially escalating privileges or modifying application data. For detailed technical exploitation information, refer to the Exploit-DB #47725 entry and the VulnCheck Advisory.

Detection Methods for CVE-2019-25265

Indicators of Compromise

• Presence of <script> tags or JavaScript event handlers (e.g., onerror, onload, onclick) in group description database fields
• Unusual outbound requests from the web application to external domains when users access the groups page
• Suspicious entries in web server access logs showing encoded script payloads in form submission data
• User reports of unexpected browser behavior or security warnings when accessing the admin groups section

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block XSS payload patterns in form submissions
• Deploy Content Security Policy (CSP) headers to restrict inline script execution and report violations
• Monitor database contents for HTML/JavaScript injection patterns in text fields
• Review application logs for suspicious input containing script tags or event handlers

Monitoring Recommendations

• Enable CSP reporting to capture and alert on blocked script execution attempts
• Configure SIEM rules to correlate web server logs with database modification events for the groups table
• Implement real-time monitoring for outbound connections from user sessions to unknown external domains
• Set up alerts for authentication events followed by group modification activities from unusual IP addresses

How to Mitigate CVE-2019-25265

Immediate Actions Required

• Audit all existing group description entries in the database for malicious script content and sanitize any compromised records
• Restrict access to the admin edit groups functionality to only essential personnel until patches are applied
• Implement Content Security Policy headers with strict script-src directives to prevent inline script execution
• Deploy a web application firewall with XSS filtering rules as a temporary protective measure

Patch Information

No official vendor patch information is available in the current CVE data. Administrators should monitor the BigProf website and the Online Inventory Manager application page for security updates. If using a self-hosted or customized version, consider implementing custom input validation and output encoding as described in the workarounds section.

Workarounds

• Apply HTML entity encoding to all user-supplied input before storing in the database, converting characters like <, >, ", ', and & to their HTML entity equivalents
• Implement strict Content Security Policy headers: Content-Security-Policy: default-src 'self'; script-src 'self'; object-src 'none';
• Use server-side input validation to reject or strip potentially dangerous characters and HTML tags from the group description field
• Consider using a sanitization library to filter HTML content while preserving safe formatting if rich text is required

# Apache .htaccess Content Security Policy configuration
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; object-src 'none'; frame-ancestors 'self';"
Header set X-Content-Type-Options "nosniff"
Header set X-XSS-Protection "1; mode=block"