Externally Controlled Reference to a Resource in Another Sphere in Moodle - CVE-2021-36400

 

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 v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2021-36400
CWE-ID: CWE-610
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: moodle.org
Affected software:
Moodle

Detailed vulnerability description

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.


How to mitigate CVE-2021-36400

Install updates from vendor's website.

Sources