Vulnerability DatabaseCVE-2022-46180
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CVE-2022-46180
January 04, 2023
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.
Related Resources (5)
https://github.com/discourse/discourse-mermaid-theme-component/security/advisories/GHSA-8437-hgcm-p3q3
https://github.com/discourse/discourse-mermaid-theme-component/commit/c10bc4a08bf865cee20e5d5dffba535762813f0f
https://nvd.nist.gov/vuln/detail/CVE-2022-46180
https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/46xxx/CVE-2022-46180.json
https://github.com/discourse/discourse-mermaid-theme-component/pull/14
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-74
EPSS
Base Score:
0.41