{"id":"CVE-2026-27064","aliases":["EUVD-2026-48151","GHSA-qwf2-rfq8-mpjg"],"status":"published","title":"WordPress Mailster plugin \u003c= 4.1.17 - Arbitrary File Upload vulnerability","description":"Editor Arbitrary File Upload in Mailster \u003c= 4.1.17 versions.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00499,"percentile":0.43134,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2026-07-23T11:17:52Z","modified":"2026-10-24T13:10:00Z","products":[{"vendor":"everpress","product":"mailster"}],"references":[{"url":"https://patchstack.com/database/wordpress/plugin/mailster/vulnerability/wordpress-mailster-plugin-4-1-17-arbitrary-file-upload-vulnerability?_s_id=cve","tags":["vdb-entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27064"},{"url":"https://github.com/advisories/GHSA-qwf2-rfq8-mpjg"}],"sources":{"cve":[{"id":"CVE-2026-27064","title":"WordPress Mailster plugin \u003c= 4.1.17 - Arbitrary File Upload vulnerability","description":"Editor Arbitrary File Upload in Mailster \u003c= 4.1.17 versions.","status":"published","published":"2026-07-23T11:17:52.448Z","modified":"2026-07-23T15:02:08.355Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:19:49.199185Z"}],"euvd":[{"id":"EUVD-2026-48151","description":"Editor Arbitrary File Upload in Mailster \u003c= 4.1.17 versions.","status":"published","published":"2026-07-23T11:17:52Z","modified":"2026-07-23T15:02:08Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T18:19:43.108781Z"}],"ghsa":[{"id":"GHSA-qwf2-rfq8-mpjg","title":"Editor Arbitrary File Upload in Mailster \u003c= 4.1.17 versions.","description":"Editor Arbitrary File Upload in Mailster \u003c= 4.1.17 versions.","status":"published","published":"2026-07-23T12:32:24Z","modified":"2026-07-23T12:32:55Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:09:41.900753Z"}],"nvd":[{"id":"CVE-2026-27064","description":"Editor Arbitrary File Upload in Mailster \u003c= 4.1.17 versions.","status":"published","published":"2026-07-23T12:17:16.81Z","modified":"2026-10-24T13:10:00.147Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:12:32.473901Z"}]}}