CVE-2022-46180 MEDIUM

CVE-2022-46180: Arbitrary HTML injection in discourse-mermaid-theme-component

Vendor Discourse
Product discourse-mermaid-theme-component
Weakness CWE-74
Published January 4, 2023
Last update March 10, 2025
View on NVD All CVEs

CVSS base score

5.0/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Discourse Mermaid (discourse-mermaid-theme-component) allows users of Discourse, open-source forum software, to create graphs using the Mermaid syntax. Users of discourse-mermaid-theme-component version 1.0.0 who can create posts are able to inject arbitrary HTML on that post. The issue has been fixed on the `main` branch of the GitHub repository, with 1.1.0 named as a patched version. Admins can update the theme component through the admin UI. As a workaround, admins can temporarily disable discourse-mermaid-theme-component.

Key dates

02Disclosure timeline

January 4, 2023 CVE published
March 10, 2025 Record updated