Is CVE-2026-72728 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-72728?

CVE-2026-72728 has a CVSS v3 severity of MEDIUM (6.3).

Back

CVE-2026-72728

Description

Discourse is an open-source discussion platform. Prior to 2026.1.7, an authenticated user could submit specially formed URLs that bypassed the Onebox allowlist and embedded malicious content in a site. This issue is fixed in versions 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0-latest.1.