CVE-2020-4052: Stored XSS through template injection in Wiki.js

Q: What is the vulnerability ID for this Wiki.js vulnerability?

The vulnerability ID for this Wiki.js vulnerability is CVE-2020-4052.

Q: What is the severity level of CVE-2020-4052?

The severity level of CVE-2020-4052 is medium.

Q: How does CVE-2020-4052 occur?

CVE-2020-4052 occurs due to an insecure validation mechanism intended to insert v-pre tags into rendered HTML elements which contain curly-braces.

Q: What is the affected software version for CVE-2020-4052?

The affected software version for CVE-2020-4052 is Wiki.js before 2.4.107.

Q: What is the fix for CVE-2020-4052?

To fix CVE-2020-4052, update Wiki.js to version 2.4.107 or later.

Published Jun 16, 2020

Updated

In Wiki.js before 2.4.107, there is a stored cross-site scripting through template injection. This vulnerability exists due to an insecure validation mechanism intended to insert v-pre tags into rendered HTML elements which contain curly-braces. By creating a crafted wiki page, a malicious Wiki.js user may stage a stored cross-site scripting attack. This allows the attacker to execute malicious JavaScript when the page is viewed by other users. This has been patched in 2.4.107.

Affected Software

1 affected component

Requarks Wiki.js<2.4.107

Remediation

Patch Available

https://github.com/Requarks/wiki/commit/9e08718ee904046f8b2294ef6ac79e8a75a451e3

Event History

Jun 16, 2020

CVE Published

via MITRE·09:55 PM

Data Sourced

via MITRE·09:55 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the vulnerability ID for this Wiki.js vulnerability?

The vulnerability ID for this Wiki.js vulnerability is CVE-2020-4052.

What is the severity level of CVE-2020-4052?