CVE-2022-41913: medium-severity vulnerability in discourse-calendar
Discourse-calendar exposes members of hidden groups
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.3epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected products
discourse · discourse-calendarRelated CVEs — discourse-calendar
In the same product, most dangerous first.
CVE-2022-31059MEDIUMDiscourse Calendar Event names susceptible to Cross-site ScriptingEPSS 0.8%CVE-2023-43658HIGHImproper escaping of user input in discourse-calendarEPSS 0.6%CVE-2024-24817MEDIUMUser can see invitees in events created in PMs and private categoriesEPSS 0.4%CVE-2024-26145MEDIUMUninvited user is able to join and mark the attendance of the the private eventEPSS 0.4%CVE-2024-21658MEDIUMInsufficient control of region value length in discourse-calendarEPSS 0.4%CVE-2024-45303MEDIUMDiscourse Calendar plugin event names susceptible to XSSEPSS 0.3%