CVE-2026-63241
Insecure direct object reference vulnerability
CVSS Score
3.1
EPSS Score
0.0%
EPSS Percentile
0th
An insecure direct object reference vulnerability in Koollab LMS allowed an authenticated user to query the course completion progress of any other user without authorisation, disclosing private learning progress information.
| Vendor | three learning |
| Product | koollab lms |
| Published | Jul 29, 2026 |
Stay Ahead of the Next One
Get instant alerts for three learning koollab lms
Be the first to know when new low vulnerabilities affecting three learning koollab lms are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
Three Learning / Koollab LMS
5.3.2