Listen to this Post
How the CVE works:
CVE-2025-51734 is a cross-site scripting (XSS) vulnerability in HCL Unica version 12.0.0, specifically within the Metrics component. This vulnerability arises from improper sanitization of user input in web interfaces, allowing attackers to inject malicious JavaScript code. When users access affected metrics pages, the injected scripts execute in their browsers, leveraging the session context. The attack vector likely involves crafted parameters in URLs or form inputs that are reflected or stored by the application. For reflected XSS, malicious scripts are embedded in requests and immediately returned in responses, requiring user interaction. For stored XSS, scripts persist on the server and automatically execute when viewed by other users. In Unica Metrics, this could compromise dashboards or reports, enabling session cookie theft, credential harvesting, or unauthorized actions. The vulnerability stems from insufficient output encoding and lack of input validation, common in web applications. Exploitation can lead to full account takeover, data leakage, and platform integrity loss. Attackers may use social engineering to trick users into clicking malicious links or submitting tainted data. The CVSS 4.0 severity indicates high impact, though exact scores are not detailed. Mitigation requires patching, secure coding practices, and security headers. NVD published this CVE on 11/28/2025, highlighting ongoing risks for Unica 12.0.0 users. Immediate action is recommended to prevent exploitation.
Platform: HCL Unica
Version: 12.0.0
Vulnerability: Cross-site Scripting
Severity: Critical
Date: 11/28/2025
Prediction: Patch 2025-12-15
What Undercode Say:
Analytics
curl -v “http://localhost/unica/metrics?input=”
echo htmlspecialchars($_GET[‘param’], ENT_QUOTES, ‘UTF-8’);
How Exploit:
Craft malicious URL with JavaScript payload. Trick user into clicking link. Inject script into Metrics input fields. Stored XSS auto-executes for viewers. Steal sessions cookies via fetch.
Protection from this CVE:
Apply HCL security patch. Implement input validation. Use output encoding. Enable Content Security Policy. Conduct regular vulnerability scans.
Impact:
Session hijacking possible. Data theft risk. Unauthorized actions execution. Platform integrity compromise. Business disruption potential.
🎯Let’s Practice Exploiting & Learn Patching For Free:
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
