Discourse is an open source platform for community discussion. A maliciously crafted email address could allow an attacker to bypass domain-based restrictions and gain access to private sites, categories and/or groups. This issue has been patched in the latest stable, beta and tests-passed version of Discourse. All users area are advised to upgrade. There are no known workarounds for this vulnerability.
| Software | From | Fixed in |
|---|---|---|
| discourse / discourse | - | 3.3.2 |
| discourse / discourse | - | 3.4.0 |
| discourse / discourse | 3.4.0-beta1 | 3.4.0-beta1.x |