CVE-2026-63239
Medium
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.
SeverityMedium
CVSS5.4
Exploit probability—
ProductKoollab LMS
PublishedJul 29, 2026
First seenJul 29, 2026
Weakness typeCWE-798Hard-coded credentials
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Three Learning Koollab LMS | 5.3.2 | — |
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