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Status published
Medium
CVE-2024-26145
Uninvited user is able to join and mark the attendance of the the private event
Vulnerability Description
Discourse Calendar adds the ability to create a dynamic calendar in the first post of a topic on Discourse. Uninvited users are able to gain access to private events by crafting a request to update their attendance. This problem is resolved in commit dfc4fa15f340189f177a1d1ab2cc94ffed3c1190. As a workaround, one may use post visibility to limit access.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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CVE-2025-68933
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CVE-2025-68666
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Affected Vendor
discourse
View all reports →Affected Software
discourse-calendar
Vulnerable Versions:
>= 2201b254, < dfc4fa15f340189f177a1d1ab2cc94ffed3c1190
Timeline
Official Publish:
February 21st, 2024
Last Modified:
August 27th, 2024
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N