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How the CVE Works
The vulnerability arises due to the explicit disabling of the Content Security Policy (CSP) in HAX CMS’s NodeJS version. The `app.js` file configures Helmet middleware with contentSecurityPolicy: false, removing protections against Cross-Site Scripting (XSS). Without CSP, malicious scripts can execute unchecked, allowing attackers to steal session tokens, manipulate DOM content, or redirect users to phishing sites if another XSS flaw exists. This misconfiguration leaves the application exposed to client-side attacks, particularly where user input is rendered unsanitized.
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Platform: HAX CMS (NodeJS)
Version:
Vulnerability: Disabled CSP
Severity: Critical
Date: 2023-01-15
Prediction: Patch by 2023-03-20
What Undercode Say
Check CSP header
curl -I http://target.com | grep "Content-Security-Policy"
Exploit via XSS (if present)
<script>alert(document.cookie);</script>
Mitigation code snippet (enable CSP in Helmet)
helmet({ contentSecurityPolicy: { directives: { defaultSrc: ["'self'"] } } })
How Exploit
1. Identify XSS vector in HAX CMS.
2. Inject malicious script (e.g., cookie theft).
3. Bypass CSP restrictions (none enforced).
Protection from this CVE
1. Enable CSP via Helmet middleware.
2. Sanitize user input.
3. Update to patched versions.
Impact
- Arbitrary script execution.
- Data exfiltration.
- Session hijacking.
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
