WordPress LifterLMS 4.21.0 Cross Site Scripting

#308
Topic created · 1 Posts · 1 Views
  • # Exploit Title: WordPress Plugin LifterLMS 4.21.0 - Stored Cross-Site Scripting (XSS) 
    # Date: 2021-05-10
    # Exploit Author: Captain\_hook
    # Vendor Homepage: https://lifterlms.com/
    # Software Link: https://github.com/gocodebox/lifterlms/releases/tag/4.21.0
    # Version: LifterLMS < 4.21.1
    # Tested on: ANY
    # CVE : CVE-2021-24308
    
    #Summary:
    
    The 'State' field of the Edit profile page of the LMS by LifterLMS – Online Course, Membership & Learning Management System Plugin for WordPress plugin before 4.21.1 is not properly sanitised when output in the About section of the profile page, leading to a stored Cross-Site Scripting issue. This could allow low privilege users (such as students) to elevate their privilege via an XSS attack when an admin will view their profile.
    
    #Proof\_of\_Concept:
    
    1- As a Lowest Privilege user go to the edit account page of the LMS
    (e.g https://example.com/my-courses/edit-account/)
    
    2- Put Your XSS payload in State parameter and save your edits, such
    as "><script>alert(/XSS/)</script>
    
    3- The XSS will be stored and triggered in the about section of the profile: (e.g https://example.com/directory/[user\_name]/) (Note): The XSS will also be triggered in the admin dashboard when viewing the user details, for example https://example.com/wp-admin/admin.php?page=llms-reporting&tab=students&stab=information&student\_id=2
    
    Refernces:
    
    https://github.com/gocodebox/lifterlms/releases/tag/4.21.0
    
    
Log in to reply