CVE-2025-31969

4.0 MEDIUM

📋 TL;DR

HCL Unica Platform has a misconfigured Content Security Policy (CSP) that could allow attackers to load malicious resources in users' browsers. This could lead to cross-site scripting (XSS) or clickjacking attacks against users accessing the platform. Organizations using HCL Unica Platform are affected.

💻 Affected Systems

Products:
  • HCL Unica Platform
Versions: All versions prior to the fix
Operating Systems: All supported operating systems
Default Config Vulnerable: ⚠️ Yes
Notes: Affects web interface components of HCL Unica Platform.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could execute arbitrary JavaScript in users' browsers, potentially stealing session cookies, credentials, or performing actions on behalf of authenticated users.

🟠

Likely Case

Limited XSS attacks that steal session data or perform clickjacking to trick users into unintended actions.

🟢

If Mitigated

Minimal impact with proper CSP headers and other web security controls in place.

🌐 Internet-Facing: MEDIUM - Web applications exposed to the internet are vulnerable to XSS and clickjacking attacks.
🏢 Internal Only: LOW - Internal-only deployments reduce exposure but still vulnerable to insider threats or compromised internal systems.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires the attacker to inject malicious content or manipulate CSP headers, typically requiring some level of access or user interaction.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Refer to HCL advisory KB0124417 for specific patched versions

Vendor Advisory: https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0124417

Restart Required: No

Instructions:

1. Review HCL advisory KB0124417. 2. Apply the recommended patch or update to a fixed version. 3. Verify CSP headers are properly configured post-update.

🔧 Temporary Workarounds

Manual CSP Header Configuration

all

Manually configure Content Security Policy headers to restrict resource loading

Configure web server (e.g., Apache, Nginx) or application to set appropriate CSP headers

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to detect and block XSS attempts
  • Deploy browser security extensions or policies that enforce CSP at the client level

🔍 How to Verify

Check if Vulnerable:

Check HTTP response headers for missing or weak Content-Security-Policy headers using browser developer tools or curl.

Check Version:

Check HCL Unica Platform version through admin interface or consult system documentation.

Verify Fix Applied:

Verify that Content-Security-Policy headers are present and properly configured in HTTP responses.

📡 Detection & Monitoring

Log Indicators:

  • Unusual JavaScript execution patterns
  • Multiple failed CSP violation reports

Network Indicators:

  • HTTP requests with suspicious script sources in CSP headers

SIEM Query:

Search for web server logs containing CSP violation reports or unusual script loading patterns.

🔗 References

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