| Package | Affected versions | Patched versions |
|---|---|---|
| discourse | = 1.1.0= 1.2.0= 1.3.0= 1.4.0= 1.5.0= 1.6.0= 1.7.0= 1.8.0= 1.9.0= 2.0.0= 2.1.0= 2.2.0= 2.3.0= 2.4.0= 2.5.0= 2.6.0= 2.7.0= 2.8.0= 2.9.0= 3.0.0= 3.1.0< 3.0.1 | 3.0.1 |
Discourse is an open-source discussion platform. Prior to version 3.0.1 on the `stable` branch and version 3.1.0.beta2 on the `beta` and `tests-passed` branches, someone can use the `exclude_tag param` to filter out topics and deduce which ones were using a specific hidden tag. This affects any Discourse site using hidden tags in public categories. This issue is patched in version 3.0.1 on the `stable` branch and version 3.1.0.beta2 on the `beta` and `tests-passed` branches. As a workaround, secure any categories that are using hidden tags, change any existing hidden tags to not include private data, or remove any hidden tags currently in use.
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