Stored Cross-Site Scripting in Koollab LMS Affects User Accounts
CVE-2026-3007

5.4MEDIUM

Key Information:

Vendor

Three Learning

Status
Koollab Learning Management System
Vendor
CVE Published:
23 April 2026

What is CVE-2026-3007?

A stored cross-site scripting (XSS) vulnerability in Koollab LMS allows attackers to execute arbitrary JavaScript on user accounts accessing the courselet feature. This could lead to unauthorized actions performed in the context of the user's session, posing significant risks to sensitive user data and overall platform security.

Affected Version(s)

Koollab Learning Management System 5.3.2.

References

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

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Justin Ng
.