CVE-2025-58054

MEDIUM5.4EPSS 0.04%

Discourse is vulnerable to XSS when quoting chat messages

Published: 10/5/2025Modified: 10/24/2025

Also known as:GHSA-7p47-8m82-m2vfBIT-discourse-2025-58054

Description

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.

Affected packages (1)

Bitnami/discoursefrom 0, < 3.5.1

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM5.4	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

References (3)

WEBhttps://github.com/discourse/discourse/commit/3a224fd546d894ee408e7414b6879e814a792f91
WEBhttps://github.com/discourse/discourse/security/advisories/GHSA-7p47-8m82-m2vf
WEBhttps://nvd.nist.gov/vuln/detail/CVE-2025-58054