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How CVE-2025-2806 Works
The CVE-2025-2806 vulnerability in the tagDiv Composer plugin (up to v5.3) allows unauthenticated attackers to execute reflected Cross-Site Scripting (XSS) via the `data` parameter. The flaw occurs due to improper sanitization of user-supplied input before rendering it in the browser. When a malicious link containing a crafted payload is visited, JavaScript executes in the victim’s session context, enabling session hijacking, defacement, or phishing. The attack requires user interaction (e.g., clicking a link).
DailyCVE Form
Platform: WordPress plugin
Version: ≤ 5.3
Vulnerability: Reflected XSS
Severity: Medium
Date: 2025-06-04
Prediction: Patch by 2025-07-15
What Undercode Say:
Exploitation Commands
curl -X GET "http://vulnerable-site.com/wp-content/plugins/td-composer/?data=<script>alert(document.cookie)</script>"
fetch(<code>https://target.com/?data=<img src=x onerror=stealCookie()></code>);
Protection Measures
1. Input Sanitization (PHP):
$clean_data = htmlspecialchars($_GET['data'], ENT_QUOTES, 'UTF-8');
2. Content Security Policy (CSP) Header:
Header set Content-Security-Policy "default-src 'self'; script-src 'unsafe-inline'"
3. WordPress Hardening:
chmod 644 wp-content/plugins/td-composer/.php
Detection Script (Python)
import requests
url = input("Enter URL: ")
payload = "<script>confirm('XSS')</script>"
response = requests.get(f"{url}?data={payload}")
if payload in response.text:
print("Vulnerable to CVE-2025-2806")
Mitigation Steps
1. Update to tagDiv Composer ≥ 5.4 (post-patch).
2. Disable plugin if unused.
3. Audit logs for `?data=` parameter abuse.
Nginx Rule to Block Exploits
location ~ /td-composer/ {
if ($args ~ "data=.script") {
return 403;
}
}
WAF Rule (ModSecurity)
SecRule ARGS_GET:data "@contains <script>" "id:1005,deny,status:403,msg:'CVE-2025-2806 Blocked'"
WordPress Hook for Sanitization
add_filter('td_composer_data', function($data) {
return esc_js($data);
});
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
