Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Jonas Hjalmarsson Really Simple Under Construction Page allows Stored XSS. This issue affects Really Simple Under Construction Page: from n/a through 1.4.6.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.