CVE-2021-4194: bookstack is vulnerable to Improper Access Control

CVE-2021-4194 · Severity: low · CVSS 3 · Published 2022-01-08

bookstack is vulnerable to Improper Access Control

Technologies: ssddanbrown/bookstack (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2021-4194 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-4194 being exploited in the wild.
How severe is CVE-2021-4194?
Low severity, with a CVSS score of 3, published 8 January 2022.
Which products and versions are affected?
ssddanbrown/bookstack (Packagist) ECOSYSTEM:introduced=0,fixed=21.12.1.
Is there a fix for CVE-2021-4194?
Yes. ssddanbrown/bookstack (Packagist): upgrade to 21.12.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-4194?
Check whether you run ssddanbrown/bookstack (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • ssddanbrown/bookstack (Packagist): upgrade to 21.12.1 or later
    composer require ssddanbrown/bookstack:^21.12.1

Affected products

  • ssddanbrown/bookstack (Packagist) ECOSYSTEM:introduced=0,fixed=21.12.1

Identifiers

  • CVE-2021-4194
  • GHSA-ghhm-xrwp-75m9

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