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.
{
"severity": "Medium",
"cpes": [
"cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
"cpe:2.3:a:moodle:moodle:3.10.0:*:*:*:*:*:*:*"
]
}