medium4.3

CVE-2023-23622

Discourse is an open-source discussion platform.

Impact

Discourse is an open-source discussion platform. Prior to version 3.0.1 of the `stable` branch and version 3.1.0.beta2 of the `beta` and `tests-passed` branches, the count of topics displayed for a tag is a count of all regular topics regardless of whether the topic is in a read restricted category or not. As a result, any users can technically poll a sensitive tag to determine if a new topic is created in a category which the user does not have excess to. In version 3.0.1 of the `stable` branch and version 3.1.0.beta2 of the `beta` and `tests-passed` branches, the count of topics displayed for a tag defaults to only counting regular topics which are not in read restricted categories. Staff users will continue to see a count of all topics regardless of the topic's category read restrictions.

Affected products

Vendor	Product	Affected versions
Discourse	Discourse	before 3.0.0 Versions 1.1.0, 1.2.0, 1.3.0, 1.4.0, 1.5.0

Weakness classification

CWE-200

Impact

Affected products

Weakness classification

References