{"id":"CVE-2024-26145","summary":"Uninvited user is able to join and mark the attendance of the the private event","details":"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.","aliases":["GHSA-4hh7-6m34-p2jp"],"modified":"2026-09-13T03:30:28.859475124Z","published":"2024-02-21T17:19:11.128Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26145.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"2201b254"},{"fixed":"dfc4fa15f340189f177a1d1ab2cc94ffed3c1190"}]}]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26145.json"},{"type":"ADVISORY","url":"https://github.com/discourse/discourse-calendar/security/advisories/GHSA-4hh7-6m34-p2jp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26145"},{"type":"FIX","url":"https://github.com/discourse/discourse-calendar/commit/dfc4fa15f340189f177a1d1ab2cc94ffed3c1190"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/discourse/discourse-calendar","events":[{"introduced":"0"},{"fixed":"dfc4fa15f340189f177a1d1ab2cc94ffed3c1190"}],"database_specific":{"source":"REFERENCES"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26145.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}