CVE-2026-63241: Three Learning Koollab LMS · Insecure Direct Object Reference
Affects Three Learning Koollab LMSSource CVE Database V5
Not known to be exploited · CVSS 3.1 Low.
Data as of 28 Oct 2026, 05:11 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/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 available, restrict access to the affected version 5.3.2 of Koollab LMS to trusted users only and monitor for any unusual access patterns related to course progress queries.
Description
CVE-2026-63241 is an insecure direct object reference vulnerability in Koollab LMS version 5.3.2. It allows an authenticated user to access the course completion progress of other users without proper authorization, exposing private learning progress information. The vulnerability has a low severity rating with a CVSS score of 3.1. No official patch or remediation guidance is currently available from the vendor.