{"id":"CVE-2023-4278","aliases":["EUVD-2023-54149","GHSA-522j-v5mv-h6mw"],"status":"published","title":"MasterStudy LMS \u003c 3.0.18 - Unauthenticated Instructor Account Creation","description":"The MasterStudy LMS WordPress Plugin WordPress plugin before 3.0.18 does not have proper checks in place during registration allowing anyone to register on the site as an instructor. They can then add courses and/or posts.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.06235,"percentile":0.936,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-269"],"published":"2023-09-11T19:46:08Z","modified":"2026-06-17T06:37:27Z","exploits":[{"source":"exploitdb","id":"EDB-51735","title":"Wordpress Plugin Masterstudy LMS - 3.0.17 - Unauthenticated Instructor Account Creation","type":"webapps","platform":"php","date":"2023-10-09","url":"https://www.exploit-db.com/exploits/51735"},{"source":"pocgithub","id":"revan-ar/CVE-2023-4278","title":"revan-ar/CVE-2023-4278","date":"2023-09-04","url":"https://github.com/revan-ar/CVE-2023-4278"}],"products":[{"vendor":"stylemixthemes","product":"masterstudy_lms"},{"vendor":"unknown","product":"masterstudy lms wordpress plugin"}],"references":[{"url":"https://wpscan.com/vulnerability/cb3173ec-9891-4bd8-9d05-24fe805b5235","tags":["exploit","vdb-entry","technical-description","x_transferred","Exploit","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/175007/WordPress-Masterstudy-LMS-3.0.17-Account-Creation.html","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4278"},{"url":"https://github.com/advisories/GHSA-522j-v5mv-h6mw"}],"sources":{"cve":[{"id":"CVE-2023-4278","title":"MasterStudy LMS \u003c 3.0.18 - Unauthenticated Instructor Account Creation","description":"The MasterStudy LMS WordPress Plugin WordPress plugin before 3.0.18 does not have proper checks in place during registration allowing anyone to register on the site as an instructor. They can then add courses and/or posts.","status":"published","published":"2023-09-11T19:46:08.65Z","modified":"2025-04-23T16:16:35.829Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"adp"}],"updated_at":"2026-11-02T14:35:30.851125Z"}],"euvd":[{"id":"EUVD-2023-54149","description":"The MasterStudy LMS WordPress Plugin WordPress plugin before 3.0.18 does not have proper checks in place during registration allowing anyone to register on the site as an instructor. They can then add courses and/or posts.","status":"published","published":"2023-09-11T19:46:08Z","modified":"2025-04-23T16:16:35Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T20:52:13.204099Z"}],"ghsa":[{"id":"GHSA-522j-v5mv-h6mw","title":"The MasterStudy LMS WordPress Plugin WordPress plugin before 3.0.18 does not have proper checks...","description":"The MasterStudy LMS WordPress Plugin WordPress plugin before 3.0.18 does not have proper checks in place during registration allowing anyone to register on the site as an instructor. They can then add courses and/or posts.","status":"published","published":"2023-09-11T21:30:17Z","modified":"2024-04-04T07:36:18Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:56:53.151805Z"}],"nvd":[{"id":"CVE-2023-4278","description":"The MasterStudy LMS WordPress Plugin WordPress plugin before 3.0.18 does not have proper checks in place during registration allowing anyone to register on the site as an instructor. They can then add courses and/or posts.","status":"published","published":"2023-09-11T20:15:11.813Z","modified":"2026-06-17T06:37:27.807Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"}],"updated_at":"2026-11-02T14:08:28.268644Z"}]}}