Vulnerability · Published Jul 29, 2026 · Assigned by CSA
CVE-2026-63236Improper access control vulnerability
Low 3.7
In plain English
A low-severity improper access control in Koollab LMS from Three Learning. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).
Severity (CVSS 3.1)3.7Low
Exploit odds (30 days)0.3%top 81.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An improper access control vulnerability in Koollab LMS allowed an unauthenticated attacker to read another user's name, internal identifier, scores, lesson status, lesson position, and cached lesson state via the SCORM API endpoint.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Three Learning | Koollab LMS | 5.3.2 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N