CVE-2026-63242

MEDIUM

Three Learning Koollab LMS - Business Logic Vulnerability

Title source: rule

Description

A business logic vulnerability in Koollab LMS allowed an authenticated learner to set their lesson completion status to completed via the SCORM commit endpoint without viewing the lesson material, compromising training and completion records.

References (1)

Core 1

Core References

https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094/

Scores

CVSS v3 4.3

EPSS 0.0015

EPSS Percentile 4.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-639

Status published

Products (1)

Three Learning/Koollab LMS 5.3.2

Published Jul 29, 2026

Tracked Since Jul 29, 2026