Improper access control in Moodle - CVE-2021-20283
Published: March 15, 2021
Vulnerability identifier: #VU51480
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-20283
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: moodle.org
Affected software:
Moodle
Moodle
Detailed vulnerability description
The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions. The web service responsible for fetching other users' enrolled courses did not validate that the requesting user had permission to view that information in each course. A remote user can gain unauthorized access to the application.
How to mitigate CVE-2021-20283
Install updates from vendor's website.