Vulnerabilities

Book Stack version 23.10.2 allows filtering local files on the server. This is possible because the application is vulnerable to SSRF.

Server-Side Request Forgery (SSRF) in GitHub repository bookstackapp/bookstack prior to v23.08.

Cross-site scripting vulnerability in BookStack versions prior to v22.09 allows a remote authenticated attacker to inject an arbitrary script.

Cross-site Scripting (XSS) - Stored in GitHub repository bookstackapp/bookstack prior to v22.02.3.

bookstack is vulnerable to Improper Access Control

bookstack is vulnerable to Improper Access Control

bookstack is vulnerable to Cross-Site Request Forgery (CSRF)

bookstack is vulnerable to Improper Access Control

bookstack is vulnerable to Unrestricted Upload of File with Dangerous Type

bookstack is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

bookstack is vulnerable to Unrestricted Upload of File with Dangerous Type

bookstack is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

bookstack is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

bookstack is vulnerable to Server-Side Request Forgery (SSRF)

BookStack is a platform for storing and organising information and documentation. In BookStack before version 0.30.5, a user with permissions to edit a page could set certain image URL's to manipulate functionality in the exporting system, which would allow them to make server side requests and/or have access to a wider scope of files within the BookStack file storage locations. The issue was addressed in BookStack v0.30.5. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade.

In BookStack before version 0.30.4, a user with permissions to edit a page could add an attached link which would execute untrusted JavaScript code when clicked by a viewer of the page. Dangerous content may remain in the database after this update. If you think this could have been exploited the linked advisory provides a SQL query to test. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade although this will not address existing exploitation of this vulnerability. The issue is fixed in version 0.30.4.

In BookStack greater than or equal to 0.18.0 and less than 0.29.2, there is an XSS vulnerability in comment creation. A user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines. This most impacts scenarios where not-trusted users are given permission to create comments. This has been fixed in 0.29.2.

BookStack before version 0.25.5 has a vulnerability where a user could upload PHP files through image upload functions, which would allow them to execute code on the host system remotely. They would then have the permissions of the PHP process. This most impacts scenarios where non-trusted users are given permission to upload images in any area of the application. The issue was addressed in a series of patches in versions 0.25.3, 0.25.4 and 0.25.5. Users should upgrade to at least v0.25.5 to avoid this vulnerability.

BookStack version 0.18.4 is vulnerable to stored cross-site scripting, within the page creation page, which can result in disruption of service and execution of javascript code.