KUNBUS PiCtory version 2.11.1 and earlier are vulnerable to a cross-site-scripting attack via the sso_token used for authentication. If an attacker provides the user with a PiCtory URL containing an HTML script as an sso_token, that script will reply to the user and be executed.
The product generates a web page, but does not neutralize or incorrectly neutralizes user-controllable input that could be interpreted as a server-side include (SSI) directive.