Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bookstackapp | Bookstack | < 0.30.5 |
Related Weaknesses (CWE)
References
- https://bookstackapp.com/blog/beta-release-v0-30-5/Vendor Advisory
- https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5Release NotesThird Party Advisory
- https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cThird Party Advisory
- https://bookstackapp.com/blog/beta-release-v0-30-5/Vendor Advisory
- https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5Release NotesThird Party Advisory
- https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cThird Party Advisory
FAQ
What is CVE-2020-26260?
CVE-2020-26260 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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...
How severe is CVE-2020-26260?
CVE-2020-26260 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-26260?
Check the references section above for vendor advisories and patch information. Affected products include: Bookstackapp Bookstack.