Auth bypass in Three Learning Koollab Lms
CVE-2026-63242
A business logic vulnerability in Koollab LMS allowed an authenticated learner to set their lesson completion status to completed via the SCORM commit endpoint without viewing the lesson material, compromising training and completion recor…
Vulnerability class: IDOR (Insecure Direct Object Reference)
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:N/I:L/A:N.
Affected products
- Three Learning Koollab Lms — versions 5.3.2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-63242?
- CVE-2026-63242 is a medium-severity vulnerability in Three Learning Koollab Lms, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-07-29.
- How severe is CVE-2026-63242?
- Medium severity. CVSS v3 base score is 4.3 out of 10.