CVE-2021-4026

Improper Access Control in bookstackapp/bookstack

View on CVE.org

Published Nov 30, 2021 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Description

bookstack is vulnerable to Improper Access Control

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

bookstackapp

bookstackapp/bookstack

affected

Version	Status	Constraints
`unspecified`	affected	< 21.11.2

Configuration 1 [-]

cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-2546	bookstack is vulnerable to Improper Access Control
Github GHSA	GHSA-jm6p-wfjg-xm7x	bookstack is vulnerable to Improper Access Control

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.926% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/bookstackapp/bookstack/commit/b4fa82e3298a15443ca40bff205b7a16a1031d92
https://huntr.dev/bounties/c6dfa80d-43e6-4b49-95af-cc031bb66b1d

History

No history.

Subscriptions

Bookstackapp Bookstack

Weaknesses

Sources

CVE record Updated: Aug 3, 2024, 5:16 PM

Status: PUBLISHED
Assigner: @huntrdev
Published: Nov 30, 2021, 7:55 PM
Updated: Aug 3, 2024, 5:16 PM
Reserved: Nov 28, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:18 AM

Status: Modified
Published: Nov 30, 2021, 8:15 PM
Modified: Jun 17, 2026, 4:18 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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