Discourse is an open-source discussion platform. In version 2.8.13 and prior on the stable branch and version 2.9.0.beta14 and prior on the beta and tests-passed branches, any authenticated user can create an unlisted topic. These topics, which are not readily available to other users, can take up unnecessary site resources. A patch for this issue is available in the main branch of Discourse. There are no known workarounds available.
| Software | From | Fixed in |
|---|---|---|
| discourse / discourse | 2.9.0-beta1 | 2.9.0-beta1.x |
| discourse / discourse | 2.9.0-beta2 | 2.9.0-beta2.x |
| discourse / discourse | 2.9.0-beta3 | 2.9.0-beta3.x |
| discourse / discourse | 2.9.0-beta4 | 2.9.0-beta4.x |
| discourse / discourse | 2.9.0-beta5 | 2.9.0-beta5.x |
| discourse / discourse | 2.9.0-beta7 | 2.9.0-beta7.x |
| discourse / discourse | 2.9.0-beta8 | 2.9.0-beta8.x |
| discourse / discourse | 2.9.0-beta6 | 2.9.0-beta6.x |
| discourse / discourse | 2.9.0-beta10 | 2.9.0-beta10.x |
| discourse / discourse | 2.9.0-beta11 | 2.9.0-beta11.x |
| discourse / discourse | 2.9.0-beta12 | 2.9.0-beta12.x |
| discourse / discourse | 2.9.0-beta13 | 2.9.0-beta13.x |
| discourse / discourse | 2.9.0-beta14 | 2.9.0-beta14.x |
| discourse / discourse | - | 2.8.13.x |