{"id":"CVE-2026-81339","title":"The MasterStudy LMS WordPress Plugin  WordPress plugin before 3.7.50 does not perform a per-object ownership check when returning a quiz attempt result, allowing any authenticated user with a minimal (subscriber) role to read other stude…","summary":"The MasterStudy LMS WordPress Plugin  WordPress plugin before 3.7.50 does not perform a per-object ownership check when returning a quiz attempt result, allowing any authenticated user with a minimal (subscriber) role to read other stude…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-639"],"product":"MasterStudy LMS WordPress Plugin","affected":["masterstudy_lms_wordpress_plugin < 3.7.50"],"published":"2026-09-23","updated":"2026-09-23","sourceUpdated":"2026-09-23T18:13:31.210","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-81339","references":[{"url":"https://wpscan.com/vulnerability/f027d0b1-5d8a-4e80-adb3-bbf97dc53306/","label":"contact@wpscan.com"}],"tags":["nvd","cve.org"],"epss":0.0018,"epssPercentile":0.0786,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-23T10:46:57.286810Z"},"ingestedAt":"2026-09-23T06:17:57.886Z","slug":"CVE-2026-81339","body":"## Overview\n\nThe MasterStudy LMS WordPress Plugin  WordPress plugin before 3.7.50 does not perform a per-object ownership check when returning a quiz attempt result, allowing any authenticated user with a minimal (subscriber) role to read other students' quiz grades, pass/fail status and attempt timestamps by referencing an attempt identifier belonging to another user.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":209574,"id":"CVE-2026-81339","ts":1790162587142,"field":"cvss","old":null,"new":"4.3"},{"seq":209573,"id":"CVE-2026-81339","ts":1790162587142,"field":"severity","old":"none","new":"medium"}]}