CVE-2023-34250

Discourse vulnerable to exposure of number of topics recently created in private categories

State: Published
Severity: 4.8 Medium
Published: Jun 13, 2023
Updated: Jan 2, 2025
Reserved: May 31, 2023

Description

Discourse is an open source discussion platform. Prior to version 3.0.4 of the `stable` branch and version 3.1.0.beta5 of the `beta` and `tests-passed` branches, an attacker could use the new topics dismissal endpoint to reveal the number of topics recently created (but not the actual content thereof) in categories they didn't have access to. This issue is patched in version 3.0.4 of the `stable` branch and version 3.1.0.beta5 of the `beta` and `tests-passed` branches. There are no known workarounds.

Scores

CVSS	Score	Vector	Source
3.1	4.8 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L	GitHub_M

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

Product	Versions
discoursediscourse	< 3.0.4Affected >= 3.1.0.beta1, < 3.1.0.beta5Affected

References

https://github.com/discourse/discourse/security/advisories/GHSA-q8m5-wmjr-3ppg

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