CVE-2026-63232: Three Learning Koollab LMS · SQL Injection
Affects Three Learning Koollab LMSSource CVE Database V5
Not known to be exploited · CVSS 9.9 Critical.
Data as of 28 Oct 2026, 05:11 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Three LearningKoollab LMS | Affected
| Fixed in– |
AI-suggested
Until a patch is available, restrict authenticated user privileges and monitor for suspicious activity related to the assessment reinforcement endpoint.
Description
CVE-2026-63232 is a critical vulnerability in Three Learning's Koollab LMS version 5.3.2. It involves SQL injection and unsafe deserialization that allows an authenticated attacker to inject malicious input through the assessment reinforcement endpoint. This can lead to arbitrary code execution on the server by writing a webshell to a publicly accessible location.