Moodle 3.10.3 – ‘url’ Persistent Cross Site Scripting

• Exploit Database
• 13 阅读

• 作者： UVision
  日期： 2021-04-23
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/49797/

• # Exploit Title: Moodle 3.10.3 - 'url' Persistent Cross Site Scripting
  # Date: 22/04/2021
  # Exploit Author: UVision
  # Vendor Homepage: https://moodle.org/
  # Software Link: https://download.moodle.org
  # Version: 3.10.3
  # Tested on: Debian/Windows 10
  
  By having the role of a teacher or an administrator or a manager (to have the possibility to create a course): 
  
  - Create a new course (http://localhost/moodle/course/edit.php?category=1&returnto=topcat)
  - Give any name , short name, date and other things required.
  - In "Description" field, click on the "link" button
  - In the url field, enter the payload : <img src=1 href=1 onerror="javascript:alert(1)"></img>
  - Create the link, an alert window appears (close it several times so that it disappears) , save the course. ("Save and return")
  
  Each time the course description is displayed, the stored xss is activated : activate it by viewing the course, by modifying it, etc.