Description
lib/formslib.php in Moodle 2.2.x before 2.2.6 and 2.3.x before 2.3.3 allows remote authenticated users to bypass intended access restrictions via a modified value of a frozen form field.
Remediation
References
Related Vulnerabilities
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Plone CMS Permissions, Privileges, and Access Controls Vulnerability (CVE-2012-5498)
phpMyAdmin Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2015-6830)