Externally Controlled Reference to a Resource in Another Sphere in Moodle - CVE-2021-36400
Published: July 19, 2021
Vulnerability identifier: #VU54984
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-2021-36400
CWE-ID: CWE-610
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to incorrect permissions checks when deleting calendar URLs. A remote user can delete calendar URLs that belong to other application users.
Affected software
Moodle
How to mitigate CVE-2021-36400
Install updates from vendor's website.
Moodle - addressed in versions 3.9.8, 3.10.5, 3.11.1