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How CVE-2025-48135 Works
This vulnerability exploits improper input sanitization in Aptivada for WP (versions ≤2.0.0), allowing attackers to inject malicious JavaScript via DOM manipulation. The payload executes when unsanitized user-controlled data (e.g., URL parameters) is written to the webpage using insecure JavaScript methods like `innerHTML` or document.write(). As the payload reflects in the DOM without server-side validation, it bypasses traditional XSS filters, compromising session tokens or redirecting users to phishing sites.
DailyCVE Form
Platform: WordPress
Version: ≤2.0.0
Vulnerability: DOM-Based XSS
Severity: Critical
Date: 05/30/2025
Prediction: Patch expected by 06/15/2025
What Undercode Say:
Exploitation
1. Craft a malicious URL with XSS payload:
https://victim-site.com/?payload=<script>alert(document.cookie)</script>
2. Use `eval()` or `innerHTML` to trigger:
document.getElementById("unsafe-div").innerHTML = window.location.hash.slice(1);
Protection
1. Sanitize inputs using DOMPurify:
import DOMPurify from 'dompurify';
document.getElementById("safe-div").innerHTML = DOMPurify.sanitize(userInput);
2. CSP header mitigation:
Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline' 'unsafe-eval'
Detection
1. Scan with OWASP ZAP:
zap-cli --zap-url http://localhost:8080/ active-scan -s https://target.com
2. Grep for risky methods:
grep -r "innerHTML|document.write|eval(" /var/www/html/
Analytics
- Exploitability: High (no auth required)
- Attack Vector: Remote
- Patch Priority: Immediate
Code Fix
Replace unsafe DOM methods with `textContent`:
// Vulnerable element.innerHTML = userData; // Fixed element.textContent = userData;
Log Analysis
Check for suspicious `document.` calls:
tail -f /var/log/nginx/access.log | grep -E "script|alert|eval"
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
