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CVE-2026-63240 is an information disclosure vulnerability in Koollab LMS 5.3.2. The flaw allows an authenticated learner to retrieve correct quiz answers from the course status endpoint without legitimately completing the assessment workflow. By exposing answer data to a user who should not yet have access to it, the vulnerable endpoint breaks assessment confidentiality and enables unauthorized access to protected quiz content.
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No public exploit code observed for this vulnerability.
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Cross-references every affected SKU, including bundled OEM variants.
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