CVE-2026-63240

Information disclosure vulnerability

Published Jul 29, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Three Learning
Three Learning koollab Lms
Weaknesses CWE-200
Vendors & Products Three Learning
Three Learning koollab Lms
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Information disclosure vulnerability
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CSA
Published
Updated
Jul 29, 2026, 2:22 PM
Reserved
Jul 16, 2026, 2:35 AM
Status
Deferred
Published
Jul 29, 2026, 7:16 AM
Modified
Oct 23, 2026, 11:10 PM