CVE-2022-21677

Description

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.

Product status

References

https://github.com/discourse/discourse/security/advisories/GHSA-768r-ppv4-5r27

https://github.com/discourse/discourse/commit/fff8b98485561b12d070c0a8c39f4e503813ab44

cve.org CVE-2022-21677

nvd.nist.gov CVE-2022-21677

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