BIT-discourse-2025-54411

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2025-54411.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-discourse-2025-54411
Aliases
Published
2025-08-21T09:26:15Z
Modified
2026-09-10T16:00:44Z
Summary
Discourse welcome banner user name XSS
Details

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 vulnerability is fixed in 3.5.0.beta8.

Database specific 
{
    "cpes": [
        "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
}
References

Affected packages

Bitnami / discourse

Package

Name
discourse
Purl
pkg:bitnami/discourse

Severity

  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.5.0

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2025-54411.json"