Information disclosure in Discourse
CVE-2023-23624
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (46.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Discourse — versions 2.4.0, 3.1.0, < 3.0.1
Weakness classification (CWE)
References
- github.com/discourse/discourse/security/advisories/GHSA-qgj5-g5vf-fm7q (Third Party Advisory)
- github.com/discourse/discourse/pull/20006 (Patch, Issue Tracking)
- github.com/discourse/discourse/commit/f55e0fe7910149c431861c18ce407d1be0d6091a (Patch)
Frequently asked questions
- What is CVE-2023-23624?
- CVE-2023-23624 is a medium-severity vulnerability in Discourse, classified under Information Disclosure. CVSS score: 4.3/10. Published 2023-01-28.
- How severe is CVE-2023-23624?
- Medium severity. CVSS v3 base score is 4.3 out of 10.