CVE Vulnerability

CVE-2020-11055

In BookStack greater than or equal to 0.18.0 and less than 0.29.2, there is an XSS vulnerability in comment creation. A user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines. This most impacts scenarios where not-trusted users are given permission to create comments. This has been fixed in 0.29.2.

3.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.4 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/BookStackApp/BookStack/security/advisories/GHSA-5vf7-q87h-pg6w Third Party Advisory
https://bookstackapp.com/blog/beta-release-v0-29-2/ Release Notes Vendor Advisory
https://github.com/BookStackApp/BookStack/releases/tag/v0.29.2 Release Notes
http://jvn.jp/en/jp/JVN41035278/index.html Third Party Advisory
Configurations

Configuration 1

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

Published : 2020-05-07 09:15

Updated : 2020-05-13 05:30

NVD link : CVE-2020-11055

Mitre link : CVE-2020-11055

Products Affected
No products.
CWE
CWE-79