CVE-2026-63227 Details
Description
An unrestricted SCORM file upload vulnerability in Koollab LMS allowed an authenticated module designer to upload a SCORM package containing a PHP webshell to a publicly accessible directory and execute arbitrary code on the server.
A vulnerability in Koollab Learning Management System (LMS) version 5.3.2 allows authenticated module designers to upload SCORM packages containing PHP web shells to a publicly accessible directory. This unrestricted file upload vulnerability could be exploited to execute arbitrary code on the server.
Three Learning, the product owner, has patched this vulnerability across all cloud-hosted instances of Koollab LMS. No manual update is required from users or administrators.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 29, 2026CISA-ADP
Assessed Jul 29, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094/ | CSA | AdvisoryBundleRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-434 | Unrestricted Upload of File with Dangerous Type | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Koollab LMS | 5.3.2 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 29, 2026 | CVE Modified | CISA-ADP |
| Jul 29, 2026 | New CVE Received | CSA |