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VulnerabilityPublished

CVE-2026-63242: Three Learning Koollab LMS · Insecure Direct Object Reference

Affects Three Learning Koollab LMSSource CVE Database V5

0

Not known to be exploited · CVSS 4.3 Medium.

Data as of 27 Oct 2026, 17:11 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
Three LearningKoollab LMSAffected
  • =5.3.2
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.

References

Community reviews

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