Is CVE-2026-63236 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-63236 being exploited in the wild.

How severe is CVE-2026-63236?

Low severity, with a CVSS score of 3.7, published 29 July 2026.

Which products and versions are affected?

Three Learning Koollab LMS 5.3.2.

Is there a fix for CVE-2026-63236?

A patch was published on 2026-04-26: Vendor patched cloud instances Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-63236 attacked?

It is attacked over the network, in a hosted service.

Am I affected by CVE-2026-63236?

Check whether you run Three Learning Koollab LMS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-63236: Three Learning Koollab LMS improper access control in SCORM API

CVE-2026-63236 · Severity: low · CVSS 3.7 · Published 2026-07-29

Koollab LMS, a cloud-based learning management system, was found to have a security flaw in its SCORM API. This vulnerability allowed unauthorized individuals to view sensitive student information, including names, internal IDs, and detailed lesson progress or scores. The vendor has already applied a fix to all cloud-hosted instances, so no customer action is required.

Technologies: Three Learning Koollab LMS. Vendors: Three Learning.

Quick answers

Is CVE-2026-63236 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-63236 being exploited in the wild.
How severe is CVE-2026-63236?: Low severity, with a CVSS score of 3.7, published 29 July 2026.
Which products and versions are affected?: Three Learning Koollab LMS 5.3.2.
Is there a fix for CVE-2026-63236?: A patch was published on 2026-04-26: Vendor patched cloud instances Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-63236 attacked?: It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-63236?: Check whether you run Three Learning Koollab LMS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An improper access control vulnerability exists within the SCORM API endpoint of Koollab LMS version 5.3.2. The flaw allows an unauthenticated remote attacker to bypass authorization checks and retrieve sensitive learner data belonging to other users. Exposed data includes user names, internal identifiers, assessment scores, lesson status, and cached lesson states. The vulnerability was addressed by the vendor, Three Learning, across all cloud-hosted SaaS instances in April 2026. An attacker would likely need to guess or obtain specific identifiers to target individual records, contributing to the 'High' attack complexity rating.

Affected products

Three Learning Koollab LMS 5.3.2

Timeline

2026-04-14: disclosed: Vendor disclosure
2026-04-26: patched: Vendor patched cloud instances
2026-07-29: advisory: Public release of advisory

References

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

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