UpHeron
All vulnerabilities

Servers and applications

CVE-2025-54411

Discourse is an open-source discussion platform. Welcome banner user name string for logged in users can be vulnerable to XSS attacks, which affect the user themselves or an admin impersonating them. Admins can temporarily alter the welcome_banner.header.logged_in_members site text to remove the preferred_display_name placeholder, or not impersonate any users for the time being. This…

Severity
Low 2.4
Published
19 Aug 2025
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
3.5.0
Sources
NVD

Affected software

SoftwareAffected versions
DiscourseServers and applications · cpe:a:discourse:discourse
  • Version 3.5.0-beta7
  • Version 3.5.0-beta6
  • Version 3.5.0-beta5
  • Version 3.5.0-beta4
All 8 release lines
  • Every version before 3.5.0
  • Version 3.5.0-beta1
  • Version 3.5.0-beta2
  • Version 3.5.0-beta3
  • Version 3.5.0-beta4
  • Version 3.5.0-beta5
  • Version 3.5.0-beta6
  • Version 3.5.0-beta7

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-54411
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-54411