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.
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Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2023-09-11. NVD baseline CVSS 7.5; sources differ by 0.0.
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.
September 11, 2023
June 17, 2026
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
Wordpress Plugin Masterstudy LMS - 3.0.17 - Unauthenticated Instructor Account Creation
Open source ↗Explore the affected products and dependency analysis for CVE-2023-4278
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CWE-269