CVE-2026-116020
Medium · 5.4CVSS
5.4
EPSS
0.2%
Published
Oct 24, 2026
CISA due date
—
The record
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permissions can enumerate sequential attachment IDs to download, rename, relink, or replace files on another user's unpublished draft pages.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-63414 Shopify App is a Rails engine for building Shopify applications. CWE-863
- CVE-2026-63338 IXP Manager is a full-stack web application for managing Internet Exchange Points. CWE-863
- CVE-2026-63115 ActivityPub is a multi-tenant ActivityPub server for Ghost, built with Fedify. CWE-863
- CVE-2026-58412 Filecoin Pin is an IPFS Pinning Service API implementation that pins to Filecoin's PDP… CWE-863
- CVE-2026-55493 HotCRP is conference review software. CWE-863
- CVE-2026-55098 Arc is an open, SQL-native time-series database for telemetry. CWE-863
- CVE-2026-115830 In Secret Server versions earlier than 12.3.1, a user under certain conditions could… CWE-863
- CVE-2026-116238 In server mode pgAdmin 4 locks an internal account after MAX_LOGIN_ATTEMPTS failed logins… CWE-863