Discourse is vulnerable to XSS when quoting chat messages (CVE-2025-58054)

Summary

Discourse is vulnerable to XSS when quoting chat messages

Original description

The description as published by the source.

Discourse is an open-source community discussion platform. Versions 3.5.0 and below are vulnerable to XSS attacks through parsing and rendering of chat channel titles and chat thread titles via the quote message functionality when using the rich text editor. This issue is fixed in version 3.5.1.

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

Affected packages

Bitnami discourse

[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.5.1"}]}]

References

advisory github.com
patch github.com
web nvd.nist.gov