Calendar
CVE-2022-41913
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
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. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Technical ContextAI
This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. 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 products include: Discourse Calendar.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.
Nextcloud Calendar is a calendar application for the nextcloud framework. Rated critical severity (CVSS 9.8), this vulne
OS command injection vulnerability in drivers_syno_import_user.php in Synology Calendar before 2.3.1-0617 allows remote
A security vulnerability in Nextcloud Calendar (CVSS 5.7). Risk factors: public PoC available. Vendor patch is available
Nextcloud calendar is a calendar app for the Nextcloud server platform. Rated medium severity (CVSS 4.3), this vulnerabi
Cross-Site Request Forgery (CSRF) vulnerability in webapi component in Synology Calendar before 2.3.4-0631 allows remote
Use of hard-coded credentials vulnerability in php component in Synology Calendar before 2.4.0-0761 allows remote attack
Cross-site request forgery (CSRF) vulnerability in the Calendar plugin before 1.3.3 for WordPress allows remote attacker
Improper access control vulnerability in SYNO.Cal.EventBase in Synology Calendar before 2.0.1-0242 allows remote authent
Nextcloud/Cloud is a calendar app for Nextcloud. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploi
Improper authorization vulnerability in SYNO.Cal.Event in Calendar before 2.1.2-0511 allows remote authenticated users t
HumHub Calendar module versions prior to 1.8.11 contain a stored XSS vulnerability in Event Types that allows attackers
Discourse Calendar plugin adds the ability to create a dynamic calendar in the first post of a topic to Discourse. Rated
Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
View allShare
External POC / Exploit Code
Leaving vuln.today