CVE-2022-21677

Discourse is an open source discussion platform. Discourse groups can be configured with varying visibility levels for the group as well as the group members. By default, a newly created group has its visibility set to public and the group's members visibility set to public as well. However, a group's visibility and the group's members visibility can be configured such that it is restricted to logged on users, members of the group or staff users. A vulnerability has been discovered in versions prior to 2.7.13 and 2.8.0.beta11 where the group advanced search option does not respect the group's visibility and members visibility level. As such, a group with restricted visibility or members visibility can be revealed through search with the right search option. This issue is patched in `stable` version 2.7.13, `beta` version 2.8.0.beta11, and `tests-passed` version 2.8.0.beta11 versions of Discourse. There are no workarounds aside from upgrading.
Severity
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Atk. Vector
NETWORK
Atk. Complexity
LOW
Priv. Required
NONE
Base Score
CVSS 3.x
EPSS Score
Percentile: 32%
VendorProductVersion
discoursediscourse
𝑥
≤ 2.7.12
discoursediscourse
2.8.0
discoursediscourse
2.8.0
discoursediscourse
2.8.0
discoursediscourse
2.8.0
discoursediscourse
2.8.0
discoursediscourse
2.8.0
discoursediscourse
2.8.0
discoursediscourse
2.8.0
discoursediscourse
2.8.0
discoursediscourse
2.8.0
𝑥
= Vulnerable software versions