CVE-2026-63227: 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

criticalCVSS 9.9CVE-2026-63227

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.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: critical — CVSS 9.9
Published: 2026-07-29
Last updated: 2026-07-30
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-63227

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-632270.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-63227	coverage & exploitation status	NVD · CVE.org

CVE-2026-63227: 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

Details

Exploitation outlook

Referenced CVEs

More from NVD Recent CVEs