CVE-2025-36173 Overview
CVE-2025-36173 is a Cross-Site Scripting (XSS) vulnerability affecting IBM InfoSphere Data Architect version 9.2.1. This vulnerability, classified under CWE-79 (Improper Neutralization of Input During Web Page Generation), allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability can be exploited remotely over the network, though it requires user interaction for successful exploitation.
Critical Impact
Attackers can execute arbitrary JavaScript in the context of affected users' browser sessions, potentially leading to session hijacking, credential theft, defacement, or unauthorized actions performed on behalf of legitimate users.
Affected Products
- IBM InfoSphere Data Architect version 9.2.1
Discovery Timeline
- 2026-03-10 - CVE-2025-36173 published to NVD
- 2026-03-11 - Last updated in NVD database
Technical Details for CVE-2025-36173
Vulnerability Analysis
This Cross-Site Scripting (XSS) vulnerability in IBM InfoSphere Data Architect arises from improper input validation and output encoding. The vulnerability allows an attacker to inject client-side scripts into web pages that are then rendered by other users' browsers. The attack vector is network-based, meaning exploitation occurs through web interfaces accessible over a network. User interaction is required, as victims must navigate to or interact with a page containing the malicious payload. Successful exploitation enables the attacker to breach confidentiality and integrity by accessing sensitive data or manipulating web content within the user's session context.
Root Cause
The root cause of CVE-2025-36173 is improper neutralization of user-supplied input during web page generation (CWE-79). IBM InfoSphere Data Architect version 9.2.1 fails to adequately sanitize or encode user-controllable input before including it in dynamically generated web content. This allows attacker-controlled data to be interpreted as executable script code rather than benign text, enabling XSS attacks.
Attack Vector
The attack leverages the network-accessible interface of IBM InfoSphere Data Architect. An attacker crafts a malicious payload containing JavaScript code and delivers it through an input vector that is improperly sanitized by the application. When a victim user accesses the affected page, the malicious script executes within their browser context, operating with the same privileges as the legitimate application.
The XSS vulnerability enables several attack scenarios including stealing session cookies, capturing user credentials through fake login forms, redirecting users to malicious sites, or performing actions within the application on behalf of the victim user. The scope is changed, meaning the vulnerability in InfoSphere Data Architect can affect resources beyond its own security scope.
Detection Methods for CVE-2025-36173
Indicators of Compromise
- Monitor web application logs for unusual input patterns containing script tags, event handlers, or encoded JavaScript payloads
- Review browser console errors indicating blocked scripts or Content Security Policy violations that may signal attempted exploitation
- Check for unexpected session activity or user actions inconsistent with normal behavior patterns
Detection Strategies
- Deploy Web Application Firewalls (WAF) with XSS detection rules to identify and block malicious input patterns
- Implement Content Security Policy (CSP) headers and monitor for policy violation reports
- Enable detailed logging on IBM InfoSphere Data Architect and establish baseline traffic patterns for anomaly detection
Monitoring Recommendations
- Configure real-time alerting for suspicious input validation failures in application logs
- Monitor for unusual outbound connections from user browsers that could indicate data exfiltration
- Establish user behavior analytics to detect anomalous session activities potentially resulting from XSS exploitation
How to Mitigate CVE-2025-36173
Immediate Actions Required
- Review the IBM Support Page for official patch information and apply available security updates
- Implement input validation controls to sanitize user-supplied data before processing
- Enable Content Security Policy (CSP) headers to restrict script execution sources
Patch Information
IBM has released security guidance for this vulnerability. Administrators should consult the IBM Support Page for detailed patching instructions and download links for IBM InfoSphere Data Architect 9.2.1. Apply the vendor-provided patches as soon as possible following your organization's change management procedures.
Workarounds
- Implement strict Content Security Policy (CSP) headers with script-src 'self' to prevent inline script execution
- Deploy Web Application Firewall (WAF) rules to filter common XSS attack patterns in incoming requests
- Restrict access to InfoSphere Data Architect interfaces to trusted networks and authenticated users only
- Educate users about the risks of clicking suspicious links or interacting with untrusted content while authenticated to the application
# Example CSP header configuration for Apache
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; frame-ancestors 'self'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
