Improper Access Control in Koollab LMS Affects User Confidentiality
CVE-2026-63236

3.7LOW

Key Information:

Vendor

Three Learning

Status
Koollab Lms
Vendor
CVE Published:
29 July 2026

What is CVE-2026-63236?

An improper access control vulnerability in Koollab LMS allows unauthenticated attackers to gain unauthorized visibility into sensitive user information. This includes access to another user's name, internal identifiers, scores, lesson status, lesson position, and cached lesson states through the SCORM API endpoint, potentially compromising user privacy and data integrity.

Affected Version(s)

Koollab LMS 5.3.2

References

https://www.csa.gov.sg/alerts-and-advisories/alerts/al-20...

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.