LOW 2.1 NVD
CVE-2026-86285
A vulnerability was detected in BookStack up to 26.05.2. Affected by this issue is the function AttachmentController::getUpdateForm of the file app/Uploads/Cont
A vulnerability was detected in BookStack up to 26.05.2. Affected by this issue is the function AttachmentController::getUpdateForm of the file app/Uploads/Controllers/AttachmentController.php of the component Attachment Edit Endpoint. The manipulation of the argument ID results in improper access controls. The attack may be launched remotely. The exploit is now public and may be used. The patch is identified as 4e406c41c4c8060a5795e74c66fb96362e54f400. It is advisable to implement a patch to correct this issue.
References
- https://ashutosh-jena.in/blog/broken-access-control-in-bookstack-how-a-missing-permission-
- https://codeberg.org/bookstack/bookstack/commit/4e406c41c4c8060a5795e74c66fb96362e54f400
- https://vuldb.com/cve/CVE-2026-86285
- https://vuldb.com/submit/905693
- https://vuldb.com/vuln/399445
This low severity vulnerability with a CVSS score of 2.1 was published on 2026-09-07 via NVD.
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