title: Stored Cross-Site Scripting (XSS) within the Media Center
description: The Frentix GmbH OpenOlat LMS is affected by stored a Cross-Site Scripting (XSS) vulnerability. It is possible to upload files within the Media Center of OpenOlat version 18.1.5 (or lower) as an authenticated user without any other rights. Although the filetypes are limited, an SVG image containing an XSS payload can be uploaded. After a successful upload the file can be shared with groups of users (including admins) who can be attacked with the JavaScript payload.
problem types: CWE-20 Improper Input Validation
affected:
{
defaultStatus: unaffected
product: OpenOlat LMS
vendor: Frentix GmbH
versions:
lessThanOrEqual: 18.1.5, status: affected, version: 0, versionType: custom
}
solutions: The vendor provides a patched version 18.1.6 or higher for the mentioned vulnerabilities.