What is CVE-2022-46180?

CVE-2022-46180 is a medium-severity vulnerability in Discourse Discourse-Mermaid-Theme-Component, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 5.0/10. Published 2023-01-04.

How severe is CVE-2022-46180?

Medium severity. CVSS v3 base score is 5.0 out of 10.

XSS in Discourse Discourse-Mermaid-Theme-Component

CVE-2022-46180

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.

EPSS: 0.005 (38.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.

Affected products

Discourse Discourse-mermaid-theme-component — versions = 1.0.0
Discourse Mermaid

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-46180?: CVE-2022-46180 is a medium-severity vulnerability in Discourse Discourse-Mermaid-Theme-Component, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 5.0/10. Published 2023-01-04.
How severe is CVE-2022-46180?: Medium severity. CVSS v3 base score is 5.0 out of 10.