JVN#78862034: BookStack vulnerable to cross-site scripting

BookStack contains a cross-site scripting vulnerability (CWE-79).

Impact

An arbitrary script may be executed on the web browser of the user who is accessing the site using the API of the product.

Solution

Update the Software
Update the software to the latest version according to the information provided by the developer.

According to the developer, when using BookStack content via its API, it is necessary to check the following documentation and add the recommended protections as necessary.
<https://www.bookstackapp.com/docs/admin/security/#using-bookstack-content-externally&gt;

Products Affected

• BookStack versions prior to v22.09