All vulnerabilities

Servers and applications

GHSA-7qg6-3972-x29w

Stored XSS in Backend Markdown Editor Preview

Severity
Low 3.1
Published
15 Oct 2026
Last changed
15 Oct 2026
Added to UpHeron
3 Nov 2026
Fixed in
4.3.1
Sources
Project advisories (GitHub)

Affected software

SoftwareAffected versions
October CMSServers and applications · github:octobercms/october
  • From 4.3.0 before 4.3.1

References