WS-2018-0185

Date: November 21, 2016

The cross-site scripting vulnerability can be triggered by an authenticated administrator visiting a malicious link. Since osClass allows a user by default to upload images via AJAX, an attacker can attach PHP code to the EXIF data in form of an image description. The administration module of osClass contains a local file inclusion vulnerability. By chaining these three vulnerabilities, the exploitation of the cross-site scripting issue leads to remote code execution on a targeted web server.

Language: PHP