{"id":"CVE-2026-81340","state":"PUBLISHED","title":"MasterStudy LMS < 3.7.50 - Instructor+ Order Status Manipulation via IDOR","description":"The MasterStudy LMS WordPress Plugin  WordPress plugin before 3.7.50 does not perform per-object ownership or capability checks when updating orders through its REST API, allowing users with the Instructor role to modify any order on the site, granting free course enrolment, revoking other users' paid enrolments, and tampering with order notes.","publishedAt":"2026-09-18T06:00:11.903Z","updatedAt":"2026-09-18T11:13:38.917Z","severity":{"score":3.8,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown MasterStudy LMS WordPress Plugin"],"affected":[{"vendor":"Unknown","product":"MasterStudy LMS WordPress Plugin","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.7.50","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/8006876f-27bb-483d-b4e4-9fa4414d16f0/"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/81xxx/CVE-2026-81340.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-81340","state":"PUBLISHED","datePublished":"2026-09-18T06:00:11.903Z","dateUpdated":"2026-09-18T11:13:38.917Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-08-26T18:07:36.343Z"},"containers":{"cna":{"title":"MasterStudy LMS < 3.7.50 - Instructor+ Order Status Manipulation via IDOR","descriptions":[{"lang":"en","value":"The MasterStudy LMS WordPress Plugin  WordPress plugin before 3.7.50 does not perform per-object ownership or capability checks when updating orders through its REST API, allowing users with the Instructor role to modify any order on the site, granting free course enrolment, revoking other users' paid enrolments, and tampering with order notes."}],"affected":[{"vendor":"Unknown","product":"MasterStudy LMS WordPress Plugin","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.7.50","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/8006876f-27bb-483d-b4e4-9fa4414d16f0/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-639 Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-09-18T06:00:11.903Z"},"credits":[{"lang":"en","value":"Shivamani Vastrala","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":3.8,"attackVector":"NETWORK","baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"LOW","privilegesRequired":"HIGH","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-18T11:09:19.265982Z","id":"CVE-2026-81340","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","type":"CWE","lang":"en","description":"CWE-639 Authorization Bypass Through User-Controlled Key"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-18T11:13:38.917Z"}}]}}}