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CVE-2026-63233

CRITICAL
9.9
CVSS 3.1
Description
A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment overall answer endpoint, control data passed to unserialize(), write a webshell to a publicly accessible location, and execute arbitrary code on the server.

Metadata

CVE ID
CVE-2026-63233
State
PUBLISHED
Assigner
CSA
Reserved
2026-07-16 02:33 UTC
Published
2026-07-29 06:19 UTC
Last updated
2026-07-29 06:19 UTC
Vendor / Product
Three Learning / Koollab LMS
Sources
cve.org  ·  NVD

Severity & Metrics

9.9 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products (1)
VendorProductPlatformVersions
Three Learning Koollab LMS — 5.3.2
CVSS scores (1)
ScoreSeverityVersionSourceVector
9.9 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References (1)
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