Discourse-calendar exposes members of hidden groups
CVE-2022-41913

4.3MEDIUM

Key Information:

Vendor
Discourse
Vendor
CVE Published:
14 November 2022

Summary

Discourse-calendar is a plugin for the Discourse messaging platform which adds the ability to create a dynamic calendar in the first post of a topic. Members of private groups or public groups with private members can be listed by users, who can create and edit post events. This vulnerability only affects sites which have discourse post events enabled. This issue has been patched in commit ca5ae3e7e which will be included in future releases. Users unable to upgrade should disable the discourse_post_event_enabled setting to fully mitigate the issue. Also, it's possible to prevent regular users from using this vulnerability by removing all groups from the discourse_post_event_allowed_on_groups but note that moderators will still be able to use it.

Affected Version(s)

discourse-calendar < 0.3

References

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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