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How the CVE Works
The vulnerability exists in Ibexa DXP’s Admin UI assets (versions 4.6.0-alpha1 to 4.6.20) due to improper input sanitization in the back office. Attackers with Editor or Administrator privileges can inject malicious JavaScript payloads into editable fields, which persist and execute when rendered in the front office. This stored XSS attack can compromise end-user sessions, steal cookies, or redirect to phishing sites. The flaw arises from unescaped output in dynamic content rendering, allowing script execution in the context of the victim’s session.
DailyCVE Form
Platform: Ibexa DXP
Version: 4.6.0-alpha1 to 4.6.20
Vulnerability: Stored XSS
Severity: Moderate
Date: Jun 12, 2025
Prediction: Patch expected by Jun 20, 2025
What Undercode Say:
Exploitation Commands
1. Crafting Malicious Payload:
<script>alert(document.cookie)</script>
2. Testing for XSS:
fetch('/admin/content/edit', {
method: 'POST',
body: 'content=<script>malicious_code</script>'
});
Mitigation Commands
1. Immediate Upgrade:
composer require ibexa/admin-ui-assets:4.6.21
2. Manual Sanitization (Temporary Fix):
htmlspecialchars($user_input, ENT_QUOTES, 'UTF-8');
Detection Script
import requests
target = "https://example.com/admin/content"
payload = "<script>confirm('XSS')</script>"
response = requests.post(target, data={"content": payload})
if payload in response.text:
print("Vulnerable to XSS")
Nginx WAF Rule
location /admin {
set $xss_check "";
if ($args ~ "<script") {
return 403;
}
}
Log Analysis
grep -r "script>" /var/log/ibexa/access.log
CSP Header (Protection)
Header set Content-Security-Policy "default-src 'self'; script-src 'unsafe-inline'"
Post-Patch Verification
curl -I https://example.com/admin | grep "X-XSS-Protection"
References
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
