CVE-2026-63234

Severity CVSS v4.0:

Pending analysis

Type:

CWE-89 SQL Injection

Publication date:

29/07/2026

Last modified:

30/07/2026

Description

A SQL injection and unsafe deserialisation<br /> vulnerability in Koollab LMS allowed an authenticated attacker to inject through the manual mark<br /> assessment endpoint, control data passed to unserialize(), write a webshell to<br /> a publicly accessible location, and execute arbitrary code on the server.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.90 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

9.90

Severity 3.x

CRITICAL

References to Advisories, Solutions, and Tools

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