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CVE-2026-63236 is an improper access control vulnerability in Koollab LMS 5.3.2 affecting a SCORM API endpoint. The flaw allows an unauthenticated attacker to access learning-record data associated with another user without authorization checks being properly enforced. Exposed data includes the target user's name, internal identifier, scores, lesson status, lesson position, and cached lesson state. The issue is an information disclosure condition caused by insufficient restriction of access to user-specific SCORM data.
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