{"id":"CVE-2025-4800","state":"PUBLISHED","title":"MasterStudy LMS Pro <= 4.7.0 - Authenticated (Subscriber+) Arbitrary File Upload","description":"The MasterStudy LMS Pro plugin for WordPress is vulnerable to arbitrary file uploads due to a missing file type validation in the stm_lms_add_assignment_attachment function in all versions up to, and including, 4.7.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload arbitrary files on the affected site's server, which may make remote code execution possible.","publishedAt":"2025-05-28T05:24:21.802Z","updatedAt":"2026-04-08T17:19:53.840Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"Wordfence"},"assigner":"Wordfence","products":["StylemixThemes MasterStudy LMS Pro"],"affected":[{"vendor":"StylemixThemes","product":"MasterStudy LMS Pro","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.7.0","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/c170a228-4abd-4ee6-ba37-bdcde1cb7fc5?source=cve","https://stylemixthemes.com/wordpress-lms-plugin/","https://themeforest.net/item/masterstudy-education-center-wordpress-theme/12170274/","https://docs.stylemixthemes.com/masterstudy-lms/changelog-pro-version"],"weaknesses":["CWE-434"],"ingestedAt":"2026-10-29T20:09:23.771Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/4xxx/CVE-2025-4800.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-4800","state":"PUBLISHED","datePublished":"2025-05-28T05:24:21.802Z","dateUpdated":"2026-04-08T17:19:53.840Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2025-05-15T19:46:25.446Z"},"containers":{"cna":{"title":"MasterStudy LMS Pro <= 4.7.0 - Authenticated (Subscriber+) Arbitrary File Upload","descriptions":[{"lang":"en","value":"The MasterStudy LMS Pro plugin for WordPress is vulnerable to arbitrary file uploads due to a missing file type validation in the stm_lms_add_assignment_attachment function in all versions up to, and including, 4.7.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload arbitrary files on the affected site's server, which may make remote code execution possible."}],"affected":[{"vendor":"StylemixThemes","product":"MasterStudy LMS Pro","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.7.0","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/c170a228-4abd-4ee6-ba37-bdcde1cb7fc5?source=cve"},{"url":"https://stylemixthemes.com/wordpress-lms-plugin/"},{"url":"https://themeforest.net/item/masterstudy-education-center-wordpress-theme/12170274/"},{"url":"https://docs.stylemixthemes.com/masterstudy-lms/changelog-pro-version"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-434","lang":"en","description":"CWE-434 Unrestricted Upload of File with Dangerous Type","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-04-08T17:19:53.840Z"},"credits":[{"lang":"en","type":"finder","value":"Friderika Baranyai"}],"timeline":[{"time":"2025-05-15T00:00:00.000Z","lang":"en","value":"Discovered"},{"time":"2025-05-27T16:26:38.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-05-28T13:31:45.134606Z","id":"CVE-2025-4800","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-05-28T13:31:51.311Z"}}]}}}