Description
webservice/upload.php in Moodle 2.6.x before 2.6.6 and 2.7.x before 2.7.3 does not ensure that a file upload is for a private or draft area, which allows remote authenticated users to upload files containing JavaScript, and consequently conduct cross-site scripting (XSS) attacks, by specifying the profile-picture area.
Remediation
References
Related Vulnerabilities
Atlassian Confluence Unrestricted Upload of File with Dangerous Type Vulnerability (CVE-2020-29450)
Joomla! Core Security Bypass (2.5.0 - 3.9.15)
WordPress Plugin BuddyPress Members Only Cross-Site Scripting (1.8.3)
Lodash CVE-2018-3721 Vulnerability (CVE-2018-3721)
SharePoint Unrestricted Upload of File with Dangerous Type Vulnerability (CVE-2020-0974)