{"id":"CVE-2026-19712","aliases":["EUVD-2026-59915","GHSA-9qrh-j6xc-w4qf"],"status":"published","title":"Masteriyo LMS \u003c 2.3.3 - Instructor+ Stored XSS via Quiz Description","description":"The Masteriyo LMS  WordPress plugin before 2.3.3 does not sanitise and escape a quiz field before outputting it back in a page, and grants its instructor role the ability to store unfiltered HTML, allowing such users to perform Stored Cross-Site Scripting attacks against any visitor of the affected page, including administrators.\nThis affects default single-site installations. Sites running multisite, or defining DISALLOW_UNFILTERED_HTML, are not affected as the capability is not granted there.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00253,"percentile":0.16901,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-08-16T06:00:16Z","modified":"2026-08-26T16:30:52Z","products":[{"vendor":"unknown","product":"masteriyo lms"}],"references":[{"url":"https://wpscan.com/vulnerability/08c31101-ee38-46e9-b451-abb1ed70079c/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-19712"},{"url":"https://wpscan.com/vulnerability/08c31101-ee38-46e9-b451-abb1ed70079c"},{"url":"https://github.com/advisories/GHSA-9qrh-j6xc-w4qf"}],"sources":{"cve":[{"id":"CVE-2026-19712","title":"Masteriyo LMS \u003c 2.3.3 - Instructor+ Stored XSS via Quiz Description","description":"The Masteriyo LMS  WordPress plugin before 2.3.3 does not sanitise and escape a quiz field before outputting it back in a page, and grants its instructor role the ability to store unfiltered HTML, allowing such users to perform Stored Cross-Site Scripting attacks against any visitor of the affected page, including administrators.\nThis affects default single-site installations. Sites running multisite, or defining DISALLOW_UNFILTERED_HTML, are not affected as the capability is not granted there.","status":"published","published":"2026-08-16T06:00:16.021Z","modified":"2026-08-17T20:01:58.232Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:47:28.691429Z"}],"euvd":[{"id":"EUVD-2026-59915","description":"The Masteriyo LMS  WordPress plugin before 2.3.3 does not sanitise and escape a quiz field before outputting it back in a page, and grants its instructor role the ability to store unfiltered HTML, allowing such users to perform Stored Cross-Site Scripting attacks against any visitor of the affected page, including administrators.\nThis affects default single-site installations. Sites running multisite, or defining DISALLOW_UNFILTERED_HTML, are not affected as the capability is not granted there.","status":"published","published":"2026-08-16T06:00:16Z","modified":"2026-08-17T20:01:58Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:01:48.026284Z"}],"ghsa":[{"id":"GHSA-9qrh-j6xc-w4qf","title":"The Masteriyo LMS  WordPress plugin before 2.3.3 does not sanitise and escape a quiz field before...","description":"The Masteriyo LMS  WordPress plugin before 2.3.3 does not sanitise and escape a quiz field before outputting it back in a page, and grants its instructor role the ability to store unfiltered HTML, allowing such users to perform Stored Cross-Site Scripting attacks against any visitor of the affected page, including administrators.\nThis affects default single-site installations. Sites running multisite, or defining DISALLOW_UNFILTERED_HTML, are not affected as the capability is not granted there.","status":"published","published":"2026-08-16T06:30:26Z","modified":"2026-08-17T21:32:20Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:10:35.189726Z"}],"nvd":[{"id":"CVE-2026-19712","description":"The Masteriyo LMS  WordPress plugin before 2.3.3 does not sanitise and escape a quiz field before outputting it back in a page, and grants its instructor role the ability to store unfiltered HTML, allowing such users to perform Stored Cross-Site Scripting attacks against any visitor of the affected page, including administrators.\nThis affects default single-site installations. Sites running multisite, or defining DISALLOW_UNFILTERED_HTML, are not affected as the capability is not granted there.","status":"published","published":"2026-08-16T06:16:52.207Z","modified":"2026-08-26T16:30:52.723Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:38.647684Z"}]}}