CVE-2026-63227 PUBLISHED

Unrestricted SCORM file upload vulnerability

Assigner: CSA
Reserved: 16.07.2026 Published: 29.07.2026 Updated: 29.07.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.9

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	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.
Product	Koollab LMS
Versions	Default: unaffected Version 5.3.2 is affected

References

https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094/