CVE-2026-63239

MEDIUM

Three Learning Koollab LMS - Hard-Coded AWS IAM Credentials Vulnerability

Title source: rule

Description

A hard-coded AWS IAM credentials vulnerability in Koollab LMS allowed an attacker to access shared multi-tenant S3 buckets and SQS queues, exposing sensitive data and enabling malicious content injection, job manipulation, or email interception.

References (1)

Core 1

Core References

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

Scores

CVSS v3 5.4

EPSS 0.0012

EPSS Percentile 2.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-798

Status published

Products (1)

Three Learning/Koollab LMS 5.3.2

Published Jul 29, 2026

Tracked Since Jul 29, 2026