{"id":"CVE-2024-0855","aliases":["EUVD-2024-16638","GHSA-g77v-mcj9-92j3"],"status":"published","title":"Spiffy Calendar \u003c 4.9.9 - Broken Access Control","description":"The Spiffy Calendar WordPress plugin before 4.9.9 doesn't check the event_author parameter, and allows any user to alter it when creating an event, leading to deceiving users/admins that a page was created by a Contributor+.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00482,"percentile":0.41814,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2024-02-27T08:30:29Z","modified":"2026-06-17T06:54:26Z","products":[{"vendor":"spiffy plugins","product":"spiffy calendar"},{"vendor":"spiffyplugins","product":"spiffy_calendar"},{"vendor":"unknown","product":"spiffy calendar"}],"references":[{"url":"https://wpscan.com/vulnerability/5d5da91e-3f34-46b0-8db2-354a88bdf934/","tags":["exploit","vdb-entry","technical-description","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-0855"},{"url":"https://wpscan.com/vulnerability/5d5da91e-3f34-46b0-8db2-354a88bdf934"},{"url":"https://github.com/advisories/GHSA-g77v-mcj9-92j3"}],"sources":{"cve":[{"id":"CVE-2024-0855","title":"Spiffy Calendar \u003c 4.9.9 - Broken Access Control","description":"The Spiffy Calendar WordPress plugin before 4.9.9 doesn't check the event_author parameter, and allows any user to alter it when creating an event, leading to deceiving users/admins that a page was created by a Contributor+.","status":"published","published":"2024-02-27T08:30:29.193Z","modified":"2024-08-08T20:36:38.282Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"adp"}],"updated_at":"2026-11-02T14:34:22.525279Z"}],"euvd":[{"id":"EUVD-2024-16638","description":"The Spiffy Calendar WordPress plugin before 4.9.9 doesn't check the event_author parameter, and allows any user to alter it when creating an event, leading to deceiving users/admins that a page was created by a Contributor+.","status":"published","published":"2024-02-27T08:30:29Z","modified":"2024-08-08T20:36:38Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T00:56:21.131507Z"}],"ghsa":[{"id":"GHSA-g77v-mcj9-92j3","title":"The Spiffy Calendar WordPress plugin before 4.9.9 doesn't check the event_author parameter, and...","description":"The Spiffy Calendar WordPress plugin before 4.9.9 doesn't check the event_author parameter, and allows any user to alter it when creating an event, leading to deceiving users/admins that a page was created by a Contributor+.","status":"published","published":"2024-02-27T09:31:17Z","modified":"2024-08-09T00:31:18Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T14:57:54.57979Z"}],"nvd":[{"id":"CVE-2024-0855","description":"The Spiffy Calendar WordPress plugin before 4.9.9 doesn't check the event_author parameter, and allows any user to alter it when creating an event, leading to deceiving users/admins that a page was created by a Contributor+.","status":"published","published":"2024-02-27T09:15:37.497Z","modified":"2026-06-17T06:54:26.413Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"updated_at":"2026-11-02T14:09:38.473056Z"}]}}