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CVE-2026-63241 is an insecure direct object reference vulnerability in Koollab LMS 5.3.2. The flaw allows an authenticated user to query the course completion progress of another user without proper authorization checks. The vulnerable behavior stems from direct access to user-associated progress data based on a supplied identifier, without adequately verifying that the requesting user is permitted to view the referenced user's records. The issue results in disclosure of private learning progress information.
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No public exploit code observed for this vulnerability.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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