Command Execution Vulnerability in Moodle 3.10 Legacy Spellchecker Plugin

CVE-2021-21809 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

A command execution vulnerability exists in the default legacy spellchecker plugin in Moodle 3.10. A specially crafted series of HTTP requests can lead to command execution. An attacker must have administrator privileges to exploit this vulnerabilities.

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