Permissions, Privileges, and Access Controls in Moodle - CVE-2020-25698
Published: November 16, 2020
Vulnerability identifier: #VU48450
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-25698
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to bypass implemented security restrictions.
The vulnerability exists due to application does not properly impose security restrictions on enrollment capabilities, when users were restored into an existing course. A remote user with teacher role without permission using course restore can unenroll students.
Affected software
Moodle
Fedora
moodle
Fedora
moodle
How to mitigate CVE-2020-25698
Install updates from vendor's website.
Moodle - addressed in versions 3.5.15, 3.7.9, 3.8.6, 3.9.3
moodle - addressed in versions 3.8.6-1.fc32, 3.9.3-1.fc33
moodle - addressed in versions 3.8.6-1.fc32, 3.9.3-1.fc33