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.
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
| Link | Tags |
|---|---|
| https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cr | third party advisory |
| https://bookstackapp.com/blog/beta-release-v0-30-5/ | vendor advisory |
| https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5 | third party advisory release notes |