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CVE-2026-63240mediumCWE-200

Information disclosure vulnerability

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 4.3epss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
An information disclosure vulnerability in Koollab LMS allowed an authenticated learner to obtain correct quiz answers from the course status endpoint without completing the assessment legitimately, compromising the integrity of assessments.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N