All vulnerabilities

Servers and applications

CVE-2024-53266

Discourse is an open source platform for community discussion. In affected versions with some combinations of plugins, and with CSP disabled, activity streams in the user's profile page may be vulnerable to XSS. This has been patched in the latest version of Discourse core. Users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled.

Severity
Medium 5.4
Published
4 Feb 2025
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
3.3.3, 3.4.0
Sources
NVD

Affected software

SoftwareAffected versions
DiscourseServers and applications · cpe:a:discourse:discourse
  • Every version before 3.3.3
  • Every version before 3.4.0
  • Version 3.4.0-beta1
  • Version 3.4.0-beta2
  • Version 3.4.0-beta3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2024-53266
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2024-53266