CVE-2022-21677

Group advanced search option may leak group and group's members visibility

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.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.15%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: discourse discourse
Published at:
Updated at:

References

Link Tags
https://github.com/discourse/discourse/security/advisories/GHSA-768r-ppv4-5r27 third party advisory
https://github.com/discourse/discourse/commit/fff8b98485561b12d070c0a8c39f4e503813ab44 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-21677?
CVE-2022-21677 has been scored as a medium severity vulnerability.
How to fix CVE-2022-21677?
To fix CVE-2022-21677, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-21677 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-21677 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-21677?
CVE-2022-21677 affects discourse discourse.
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