Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 3.0.0.beta16 on the `beta` and `tests-passed` branches, pending post titles can be used for cross-site scripting attacks. Pending posts can be created by unprivileged users when a category has the "require moderator approval of all new topics" setting set. This vulnerability can lead to a full XSS on sites which have modified or disabled Discourse’s default Content Security Policy. A patch is available in versions 2.8.14 and 3.0.0.beta16.
2023-01-05T20:15:18.900
2024-11-21T07:44:50.287
Modified
CVSSv3.1: 8.0 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | discourse | discourse | < 2.8.14 | Yes |
| Application | discourse | discourse | 1.1.0 | Yes |
| Application | discourse | discourse | 1.1.0 | Yes |
| Application | discourse | discourse | 1.1.0 | Yes |
| Application | discourse | discourse | 1.1.0 | Yes |
| Application | discourse | discourse | 1.1.0 | Yes |
| Application | discourse | discourse | 1.1.0 | Yes |
| Application | discourse | discourse | 1.1.0 | Yes |
| Application | discourse | discourse | 1.1.0 | Yes |
| Application | discourse | discourse | 1.1.0 | Yes |
| Application | discourse | discourse | 1.2.0 | Yes |
| Application | discourse | discourse | 1.2.0 | Yes |
| Application | discourse | discourse | 1.2.0 | Yes |
| Application | discourse | discourse | 1.2.0 | Yes |
| Application | discourse | discourse | 1.2.0 | Yes |
| Application | discourse | discourse | 1.2.0 | Yes |
| Application | discourse | discourse | 1.2.0 | Yes |
| Application | discourse | discourse | 1.2.0 | Yes |
| Application | discourse | discourse | 1.2.0 | Yes |
| Application | discourse | discourse | 1.3.0 | Yes |
| Application | discourse | discourse | 1.3.0 | Yes |
| Application | discourse | discourse | 1.3.0 | Yes |
| Application | discourse | discourse | 1.3.0 | Yes |
| Application | discourse | discourse | 1.3.0 | Yes |
| Application | discourse | discourse | 1.3.0 | Yes |
| Application | discourse | discourse | 1.3.0 | Yes |
| Application | discourse | discourse | 1.3.0 | Yes |
| Application | discourse | discourse | 1.3.0 | Yes |
| Application | discourse | discourse | 1.3.0 | Yes |
| Application | discourse | discourse | 1.3.0 | Yes |
| Application | discourse | discourse | 1.4.0 | Yes |
| Application | discourse | discourse | 1.4.0 | Yes |
| Application | discourse | discourse | 1.4.0 | Yes |
| Application | discourse | discourse | 1.4.0 | Yes |
| Application | discourse | discourse | 1.4.0 | Yes |
| Application | discourse | discourse | 1.4.0 | Yes |
| Application | discourse | discourse | 1.4.0 | Yes |
| Application | discourse | discourse | 1.4.0 | Yes |
| Application | discourse | discourse | 1.4.0 | Yes |
| Application | discourse | discourse | 1.4.0 | Yes |
| Application | discourse | discourse | 1.4.0 | Yes |
| Application | discourse | discourse | 1.4.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.5.0 | Yes |
| Application | discourse | discourse | 1.6.0 | Yes |
| Application | discourse | discourse | 1.6.0 | Yes |
| Application | discourse | discourse | 1.6.0 | Yes |
| Application | discourse | discourse | 1.6.0 | Yes |
| Application | discourse | discourse | 1.6.0 | Yes |
| Application | discourse | discourse | 1.6.0 | Yes |
| Application | discourse | discourse | 1.6.0 | Yes |
| Application | discourse | discourse | 1.6.0 | Yes |
| Application | discourse | discourse | 1.6.0 | Yes |
| Application | discourse | discourse | 1.6.0 | Yes |
| Application | discourse | discourse | 1.6.0 | Yes |
| Application | discourse | discourse | 1.6.0 | Yes |
| Application | discourse | discourse | 1.7.0 | Yes |
| Application | discourse | discourse | 1.7.0 | Yes |
| Application | discourse | discourse | 1.7.0 | Yes |
| Application | discourse | discourse | 1.7.0 | Yes |
| Application | discourse | discourse | 1.7.0 | Yes |
| Application | discourse | discourse | 1.7.0 | Yes |
| Application | discourse | discourse | 1.7.0 | Yes |
| Application | discourse | discourse | 1.7.0 | Yes |
| Application | discourse | discourse | 1.7.0 | Yes |
| Application | discourse | discourse | 1.7.0 | Yes |
| Application | discourse | discourse | 1.7.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.8.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 1.9.0 | Yes |
| Application | discourse | discourse | 2.0.0 | Yes |
| Application | discourse | discourse | 2.0.0 | Yes |
| Application | discourse | discourse | 2.0.0 | Yes |
| Application | discourse | discourse | 2.0.0 | Yes |
| Application | discourse | discourse | 2.0.0 | Yes |
| Application | discourse | discourse | 2.0.0 | Yes |
| Application | discourse | discourse | 2.0.0 | Yes |
| Application | discourse | discourse | 2.0.0 | Yes |
| Application | discourse | discourse | 2.0.0 | Yes |
| Application | discourse | discourse | 2.0.0 | Yes |
| Application | discourse | discourse | 2.1.0 | Yes |
| Application | discourse | discourse | 2.1.0 | Yes |
| Application | discourse | discourse | 2.1.0 | Yes |
| Application | discourse | discourse | 2.1.0 | Yes |
| Application | discourse | discourse | 2.1.0 | Yes |
| Application | discourse | discourse | 2.1.0 | Yes |
| Application | discourse | discourse | 2.2.0 | Yes |
| Application | discourse | discourse | 2.2.0 | Yes |
| Application | discourse | discourse | 2.2.0 | Yes |
| Application | discourse | discourse | 2.2.0 | Yes |
| Application | discourse | discourse | 2.2.0 | Yes |
| Application | discourse | discourse | 2.2.0 | Yes |
| Application | discourse | discourse | 2.2.0 | Yes |
| Application | discourse | discourse | 2.2.0 | Yes |
| Application | discourse | discourse | 2.2.0 | Yes |
| Application | discourse | discourse | 2.2.0 | Yes |
| Application | discourse | discourse | 2.3.0 | Yes |
| Application | discourse | discourse | 2.3.0 | Yes |
| Application | discourse | discourse | 2.3.0 | Yes |
| Application | discourse | discourse | 2.3.0 | Yes |
| Application | discourse | discourse | 2.3.0 | Yes |
| Application | discourse | discourse | 2.3.0 | Yes |
| Application | discourse | discourse | 2.3.0 | Yes |
| Application | discourse | discourse | 2.3.0 | Yes |
| Application | discourse | discourse | 2.3.0 | Yes |
| Application | discourse | discourse | 2.3.0 | Yes |
| Application | discourse | discourse | 2.3.0 | Yes |
| Application | discourse | discourse | 2.4.0 | Yes |
| Application | discourse | discourse | 2.4.0 | Yes |
| Application | discourse | discourse | 2.4.0 | Yes |
| Application | discourse | discourse | 2.4.0 | Yes |
| Application | discourse | discourse | 2.4.0 | Yes |
| Application | discourse | discourse | 2.4.0 | Yes |
| Application | discourse | discourse | 2.4.0 | Yes |
| Application | discourse | discourse | 2.4.0 | Yes |
| Application | discourse | discourse | 2.4.0 | Yes |
| Application | discourse | discourse | 2.4.0 | Yes |
| Application | discourse | discourse | 2.4.0 | Yes |
| Application | discourse | discourse | 2.5.0 | Yes |
| Application | discourse | discourse | 2.5.0 | Yes |
| Application | discourse | discourse | 2.5.0 | Yes |
| Application | discourse | discourse | 2.5.0 | Yes |
| Application | discourse | discourse | 2.5.0 | Yes |
| Application | discourse | discourse | 2.5.0 | Yes |
| Application | discourse | discourse | 2.5.0 | Yes |
| Application | discourse | discourse | 2.6.0 | Yes |
| Application | discourse | discourse | 2.6.0 | Yes |
| Application | discourse | discourse | 2.6.0 | Yes |
| Application | discourse | discourse | 2.6.0 | Yes |
| Application | discourse | discourse | 2.6.0 | Yes |
| Application | discourse | discourse | 2.6.0 | Yes |
| Application | discourse | discourse | 2.7.0 | Yes |
| Application | discourse | discourse | 2.7.0 | Yes |
| Application | discourse | discourse | 2.7.0 | Yes |
| Application | discourse | discourse | 2.7.0 | Yes |
| Application | discourse | discourse | 2.7.0 | Yes |
| Application | discourse | discourse | 2.7.0 | Yes |
| Application | discourse | discourse | 2.7.0 | Yes |
| Application | discourse | discourse | 2.7.0 | Yes |
| Application | discourse | discourse | 2.7.0 | Yes |
| Application | discourse | discourse | 2.8.0 | Yes |
| Application | discourse | discourse | 2.8.0 | Yes |
| Application | discourse | discourse | 2.8.0 | Yes |
| Application | discourse | discourse | 2.8.0 | Yes |
| Application | discourse | discourse | 2.8.0 | Yes |
| Application | discourse | discourse | 2.8.0 | Yes |
| Application | discourse | discourse | 2.8.0 | Yes |
| Application | discourse | discourse | 2.8.0 | Yes |
| Application | discourse | discourse | 2.8.0 | Yes |
| Application | discourse | discourse | 2.8.0 | Yes |
| Application | discourse | discourse | 2.8.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 2.9.0 | Yes |
| Application | discourse | discourse | 3.0.0 | Yes |