Unrestricted Character Limit in Moodle Messaging Leads to Denial of Service Vulnerability
CVE-2021-20185 · MEDIUM Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
It was found in Moodle before version 3.10.1, 3.9.4, 3.8.7 and 3.5.16 that messaging did not impose a character limit when sending messages, which could result in client-side (browser) denial of service for users receiving very large messages.
Learn more about our User Device Pen Test.