CVE-2026-116020
5.4 MEDIUMPublished 2026-10-24 · Updated 2026-10-26
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
BookStack before 26.09.2 contains an incorrect authorization vulnerability in AttachmentController that allows authenticated users to access other users' draft page attachments by ID. Attackers with attachment permissions can enumerate sequential attachment IDs to download, rename, relink, or replace files on another user's unpublished draft pages.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-863
All references
- https://codeberg.org/bookstack/bookstack/commit/fcadecccda706b4ecaf9ac3f8e27defe0ebe78ae
- https://codeberg.org/bookstack/bookstack/releases/tag/v26.09.2
- https://codeberg.org/bookstack/bookstack/src/tag/v26.09.1/app/Uploads/Controllers/AttachmentController.php
- https://www.bookstackapp.com/blog/bookstack-release-v26-09-2/
- https://www.vulncheck.com/advisories/bookstack-before-26.09.2-incorrect-authorization-via-attachmentcontroller-on-draft-pages
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
- HIGHCVE-2024-22031PoC
- MEDIUMCVE-2026-100145
- MEDIUMCVE-2026-100259
- HIGHCVE-2026-100262
- LOWCVE-2026-100270
- HIGHCVE-2026-100273
- MEDIUMCVE-2026-100276
- HIGHCVE-2026-100277
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