CVE-2022-41913 Discourse-calendar exposes members of hidden groups
Attackers can list members of hidden groups in Discourse-calendar if post events are enabled, exposing private user data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-41913?
CVE-2022-41913 is a medium-severity vulnerability in discourse-calendar, published on 14 Nov 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-200
Which versions are affected by CVE-2022-41913?
It affects 1 product.
Products include Discourse Calendar.
How do I fix CVE-2022-41913?
No fix has been published for CVE-2022-41913 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-41913 being exploited?
There is no known exploitation of CVE-2022-41913 in the wild and no public exploit code.
Other vulnerabilities in discourse-calendar
Sources
Also known as GHSA-jh96-w279-g7r9.