CVE-2026-63242: Three Learning Koollab LMS · Insecure Direct Object Reference
Affects Three Learning Koollab LMSSource CVE Database V5
Not known to be exploited · CVSS 4.3 Medium.
Data as of 28 Oct 2026, 05:11 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 16% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 29 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Three LearningKoollab LMS | Affected
| Fixed in– |
AI-suggested
Until a fix is released, organizations should consider restricting access to the SCORM commit endpoint or implementing additional monitoring to detect anomalous completion status changes.
Description
CVE-2026-63242 is a business logic vulnerability in Koollab LMS version 5.3.2 that allows an authenticated learner to mark lessons as completed via the SCORM commit endpoint without actually viewing the lesson material. This undermines the integrity of training and completion records.