CVE Vulnerability

CVE-2020-26210

In BookStack before version 0.30.4, a user with permissions to edit a page could add an attached link which would execute untrusted JavaScript code when clicked by a viewer of the page. Dangerous content may remain in the database after this update. If you think this could have been exploited the linked advisory provides a SQL query to test. As a workaround, 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 version 0.30.4.

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

8.7 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://bookstackapp.com/blog/beta-release-v0-30-4/ Exploit Patch
https://github.com/BookStackApp/BookStack/releases/tag/v0.30.4 Third Party Advisory
https://github.com/BookStackApp/BookStack/security/advisories/GHSA-7p2j-4h6p-cq3h Exploit Third Party Advisory
https://github.com/BookStackApp/BookStack/commit/349162ea139556b2d25e09e155cec84e21cc9227 Patch Third Party Advisory
Configurations

Configuration 1

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

Published : 2020-11-03 07:15

Updated : 2020-11-16 04:14

NVD link : CVE-2020-26210

Mitre link : CVE-2020-26210

Products Affected
No products.
CWE
CWE-79