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VulnerabilityPublished

CVE-2026-63236: Three Learning Koollab LMS · Improper Access Control

Affects Three Learning Koollab LMSSource CVE Database V5

0

Not known to be exploited · CVSS 3.7 Low.

Data as of 28 Oct 2026, 05:11 UTC

CVSS 3.1 base score
3.7Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/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 patch is available, restrict access to the SCORM API endpoint if possible or monitor for suspicious access patterns.

Description

CVE-2026-63236 is an improper access control vulnerability in Three Learning's Koollab LMS version 5.3.2. It allows an unauthenticated attacker to read sensitive user information such as names, internal identifiers, scores, lesson status, lesson position, and cached lesson state via the SCORM API endpoint. The vulnerability has a low severity score of 3.7 and does not impact integrity or availability. No official patch or remediation guidance is currently available.

References

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