CVE-2026-3007
Medium
Description
Successful exploitation of the stored cross-site scripting (XSS) vulnerability could allow an attacker to execute arbitrary JavaScript on any user account that has access to Koollab LMS’ courselet feature.
SeverityMedium
CVSS5.4
Exploit probability—
ProductKoollab Learning Management System
PublishedApr 23, 2026
First seenApr 23, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Three Learning Koollab Learning Management System | 5.3.2. | — |
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