{"id":"CVE-2026-84740","aliases":["EUVD-2026-91210","GHSA-4c37-j68q-cmxj"],"status":"published","title":"The Events Calendar 6.12.0 - 6.17.5 - Unauthenticated Arbitrary Shortcode Execution via 'view_data' Parameter","description":"The Events Calendar WordPress plugin before 6.17.5.1 does not validate or sanitise data submitted to an unauthenticated AJAX action before merging it into its rendering context, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00223,"percentile":0.13028,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-74"],"published":"2026-10-02T06:56:50Z","modified":"2026-10-02T18:00:34Z","products":[{"vendor":"stellarwp","product":"the events calendar"},{"vendor":"unknown","product":"the events calendar"}],"references":[{"url":"https://wpscan.com/vulnerability/3381a51e-beaa-4420-a33b-6a68612a2e8a/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84740"},{"url":"https://wpscan.com/vulnerability/3381a51e-beaa-4420-a33b-6a68612a2e8a"},{"url":"https://github.com/advisories/GHSA-4c37-j68q-cmxj"}],"sources":{"cve":[{"id":"CVE-2026-84740","title":"The Events Calendar 6.12.0 - 6.17.5 - Unauthenticated Arbitrary Shortcode Execution via 'view_data' Parameter","description":"The Events Calendar WordPress plugin before 6.17.5.1 does not validate or sanitise data submitted to an unauthenticated AJAX action before merging it into its rendering context, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.","status":"published","published":"2026-10-02T06:56:50.295Z","modified":"2026-10-02T10:54:10.668Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:20:08.391556Z"}],"euvd":[{"id":"EUVD-2026-91210","description":"The Events Calendar WordPress plugin before 6.17.5.1 does not validate or sanitise data submitted to an unauthenticated AJAX action before merging it into its rendering context, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.","status":"published","published":"2026-10-02T06:56:50Z","modified":"2026-10-02T10:54:10Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T17:27:43.134956Z"}],"ghsa":[{"id":"GHSA-4c37-j68q-cmxj","title":"The Events Calendar WordPress plugin before 6.17.5.1 does not validate or sanitise data submitted...","description":"The Events Calendar WordPress plugin before 6.17.5.1 does not validate or sanitise data submitted to an unauthenticated AJAX action before merging it into its rendering context, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.","status":"published","published":"2026-10-02T09:31:17Z","modified":"2026-10-02T12:31:10Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T15:12:42.431145Z"}],"nvd":[{"id":"CVE-2026-84740","description":"The Events Calendar WordPress plugin before 6.17.5.1 does not validate or sanitise data submitted to an unauthenticated AJAX action before merging it into its rendering context, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.","status":"published","published":"2026-10-02T07:16:38Z","modified":"2026-10-02T18:00:34.733Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:12:53.41762Z"}]}}