CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NCVE-2023-23624
Medium (5.3) in discourse discourse. EPSS 0.6% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
- CWE
- CWE-200
- Published
- Modified
- Record from
- the NVD, synced
Affected
- discourse:discourse
References
- https://github.com/discourse/discourse/commit/f55e0fe7910149c431861c18ce407d1be0d6091a
- https://github.com/discourse/discourse/pull/20006
- https://github.com/discourse/discourse/security/advisories/GHSA-qgj5-g5vf-fm7q
- https://github.com/discourse/discourse/commit/f55e0fe7910149c431861c18ce407d1be0d6091a
- https://github.com/discourse/discourse/pull/20006