Moodle 'PHPCOVERAGE_HOME' Cross Site Scripting Vulnerability

Summary
Moodle is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. Exploiting this vulnerability may allow an attacker to perform cross- site scripting attacks on unsuspecting users in the context of the affected website. As a result, the attacker may be able to steal cookie- based authentication credentials and to launch other attacks. Versions prior to Moodle 2.0.1 are vulnerable.
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