CVE-2020-11051 Information

Description

In Wiki.js before 2.3.81 there is a stored XSS in the Markdown editor. An editor with write access to a page using the Markdown editor could inject an XSS payload into the content. If another editor (with write access as well) load the same page into the Markdown editor the XSS payload will be executed as part of the preview panel. The rendered result does not contain the XSS payload as it is stripped by the HTML Sanitization security module. This vulnerability only impacts editors loading the malicious page in the Markdown editor. This has been patched in 2.3.81.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Reference

https://github.com/Requarks/wiki/commit/05e8a71ceff39167aee830ba8ad5eb0161f2911a https://github.com/Requarks/wiki/security/advisories/GHSA-vj72-c9vq-qxrv

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

4.8