CVE Vulnerability

CVE-2020-26260

BookStack is a platform for storing and organising information and documentation. In BookStack before version 0.30.5, a user with permissions to edit a page could set certain image URL's to manipulate functionality in the exporting system, which would allow them to make server side requests and/or have access to a wider scope of files within the BookStack file storage locations. The issue was addressed in BookStack v0.30.5. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade.

5.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.4 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5 Release Notes Third Party Advisory
https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cr Third Party Advisory
https://bookstackapp.com/blog/beta-release-v0-30-5/ Vendor Advisory
Configurations

Configuration 1

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

Published : 2020-12-09 05:15

Updated : 2020-12-10 10:51

NVD link : CVE-2020-26260

Mitre link : CVE-2020-26260

Products Affected
No products.
CWE
CWE-74