Description
Claroline 13.5.7 and prior allows an authenticated attacker to elevate privileges via the arbitrary creation of a privileged user. By combining the XSS vulnerability present in several upload forms and a javascript request to the present API, it is possible to trigger the creation of a user with administrative rights by opening an SVG file as an administrator user.
Remediation
References
Related Vulnerabilities
Jboss EAP Permissions, Privileges, and Access Controls Vulnerability (CVE-2013-2133)
WordPress Plugin WP Content Copy Protection & No Right Click Security Bypass (3.1.4)
SugarCRM Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2019-17299)
WordPress Plugin WooCommerce Subscriptions Cross-Site Scripting (2.6.2)
WordPress Plugin Grow by Tradedoubler-Advertiser for WooCommerce Local File Inclusion (2.0.21)