Tuleap is an Open Source Suite to improve management of software developments and collaboration. An attacker could use a vulnerability present in Tuleap Community Edition prior to version 16.8.99.1748845907 and Tuleap Enterprise Edition prior to versions 16.8-3 and 16.7-5 to trick victims into changing the canned responses. Tuleap Community Edition 16.8.99.1748845907, Tuleap Enterprise Edition 16.8-3, and Tuleap Enterprise Edition 16.7-5 contain a fix for the vulnerability.
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.