VULNERABILITY INTELLIGENCE
CVE-2025-58054
CVSS score3.5 LOW
EPSS probability0.21%
CISA KEVNot currently listed
Published2025-10-01
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
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.
Weakness classification
- security-advisories@github.com: CWE-80
Primary references
- security-advisories@github.com — Patch
- security-advisories@github.com — Vendor Advisory