CVE-2026-80069
CVE-2026-80069
MasterStudy LMS plugin for WordPress before 3.7.50 contains a missing authorization vulnerability that allows any authenticated user, including Subscribers, to trigger the stm_lms_send_test_email_ajax AJAX action without capability or nonce validation. Attackers can invoke this handler directly or via cross-site request forgery to cause an uncaught PHP fatal error that, when display_errors is enabled, discloses the absolute filesystem path of the plugin.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- docs.stylemixthemes.com/masterstudy-lms/changelog-free-version (release-notes, patch)
- wordpress.org/plugins/masterstudy-lms-learning-management-system (product)
- www.vulncheck.com/advisories/masterstudy-lms-wordpress-plugin-missing-authoriza… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-80069?
- CVE-2026-80069 is a medium-severity vulnerability, classified under Path Traversal. CVSS score: 4.3/10. Published 2026-10-29.
- How severe is CVE-2026-80069?
- Medium severity. CVSS v3 base score is 4.3 out of 10.