Improper Authentication in Moodle - CVE-2021-40693
Published: September 21, 2021
Vulnerability identifier: #VU56755
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-40693
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to a type juggling issue in the external database authentication functionality. A remote attacker can bypass authentication process and gain unauthorized access to the application.
Affected software
Moodle
How to mitigate CVE-2021-40693
Install updates from vendor's website.
Moodle - addressed in versions 3.9.10, 3.10.7, 3.11.3