All vulnerabilities

Servers and applications

CVE-2025-58054

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.

Severity
Medium 5.4
Published
1 Oct 2025
Last changed
19 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
3.5.0, 3.6.0
Sources
NVD

Affected software

SoftwareAffected versions
DiscourseServers and applications · cpe:a:discourse:discourse
  • Every version before 3.5.0
  • Every version before 3.6.0
  • Version 3.6.0-beta1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-58054
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-58054