Vulnerabilities > CVE-2020-26211 - Unspecified vulnerability in Bookstackapp Bookstack

CVSS 8.7 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

LOW

Confidentiality impact

HIGH

Integrity impact

HIGH

Availability impact

NONE

network

low complexity

bookstackapp

NVD

Published: 2020-11-03

Updated: 2024-11-21

Summary

In BookStack before version 0.30.4, a user with permissions to edit a page could insert JavaScript code through the use of `javascript:` URIs within a link or form which would run, within the context of the current page, when clicked or submitted. Additionally, a user with permissions to edit a page could insert a particular meta tag which could be used to silently redirect users to a alternative location upon visit of a page. Dangerous content may remain in the database but will be removed before being displayed on a page. If you think this could have been exploited the linked advisory provides a SQL query to test. As a workaround without upgrading, page edit permissions could be limited to only those that are trusted until you can upgrade although this will not address existing exploitation of this vulnerability. The issue is fixed in BookStack version 0.30.4.

Vulnerable Configurations

Part	Description	Count
Application	Bookstackapp Bookstackapp Bookstack - Bookstackapp Bookstack 0.5.0 Bookstackapp Bookstack 0.6.0 Bookstackapp Bookstack 0.6.1 Bookstackapp Bookstack 0.6.2 Bookstackapp Bookstack 0.6.3 Bookstackapp Bookstack 0.7.0 Bookstackapp Bookstack 0.7.1 Bookstackapp Bookstack 0.7.2 Bookstackapp Bookstack 0.7.3 Bookstackapp Bookstack 0.7.4 Bookstackapp Bookstack 0.7.5 Bookstackapp Bookstack 0.7.6 Bookstackapp Bookstack 0.8.0 Bookstackapp Bookstack 0.8.1 Bookstackapp Bookstack 0.8.2 Bookstackapp Bookstack 0.9.0 Bookstackapp Bookstack 0.9.1 Bookstackapp Bookstack 0.9.2 Bookstackapp Bookstack 0.9.3 Bookstackapp Bookstack 0.10.0 Bookstackapp Bookstack 0.11.0 Bookstackapp Bookstack 0.11.1 Bookstackapp Bookstack 0.11.2 Bookstackapp Bookstack 0.12.0 Bookstackapp Bookstack 0.12.1 Bookstackapp Bookstack 0.12.2 Bookstackapp Bookstack 0.13.0 Bookstackapp Bookstack 0.13.1 Bookstackapp Bookstack 0.14.0 Bookstackapp Bookstack 0.14.1 Bookstackapp Bookstack 0.14.2 Bookstackapp Bookstack 0.14.3 Bookstackapp Bookstack 0.15.0 Bookstackapp Bookstack 0.15.1 Bookstackapp Bookstack 0.15.2 Bookstackapp Bookstack 0.15.3 Bookstackapp Bookstack 0.16.0 Bookstackapp Bookstack 0.16.1 Bookstackapp Bookstack 0.16.2 Bookstackapp Bookstack 0.16.3 Bookstackapp Bookstack 0.17.0 Bookstackapp Bookstack 0.17.1 Bookstackapp Bookstack 0.17.2 Bookstackapp Bookstack 0.17.3 Bookstackapp Bookstack 0.17.4 Bookstackapp Bookstack 0.18.0 Bookstackapp Bookstack 0.18.1 Bookstackapp Bookstack 0.18.2 Bookstackapp Bookstack 0.18.3 Bookstackapp Bookstack 0.18.4 Bookstackapp Bookstack 0.18.5 Bookstackapp Bookstack 0.19.0 Bookstackapp Bookstack 0.20.0 Bookstackapp Bookstack 0.20.1 Bookstackapp Bookstack 0.20.2 Bookstackapp Bookstack 0.20.3 Bookstackapp Bookstack 0.21.0 Bookstackapp Bookstack 0.22.0 Bookstackapp Bookstack 0.23.0 Bookstackapp Bookstack 0.23.1 Bookstackapp Bookstack 0.23.2 Bookstackapp Bookstack 0.24.0 Bookstackapp Bookstack 0.24.1 Bookstackapp Bookstack 0.24.2 Bookstackapp Bookstack 0.24.3 Bookstackapp Bookstack 0.25.0 Bookstackapp Bookstack 0.25.1 Bookstackapp Bookstack 0.25.2 Bookstackapp Bookstack 0.25.3 Bookstackapp Bookstack 0.25.4 Bookstackapp Bookstack 0.25.5 Bookstackapp Bookstack 0.26.0 Bookstackapp Bookstack 0.26.1 Bookstackapp Bookstack 0.26.2 Bookstackapp Bookstack 0.26.3 Bookstackapp Bookstack 0.29.2 Bookstackapp Bookstack 0.29.3 Bookstackapp Bookstack 0.30.0 Bookstackapp Bookstack 0.30.1 Bookstackapp Bookstack 0.30.2 Bookstackapp Bookstack 0.30.3	82

Summary

Vulnerable Configurations

References