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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| discourse | discourse | < 2026.1.7, >= 2026.6.0-latest, < 2026.6.2, >= 2026.7.0-latest, < 2026.7.1, >= 2026.8.0-latest, < 2026.8.0-latest.1 | — |