CVE-2026-63234
A vulnerability in Koollab LMS lets an authenticated user inject SQL and unsafe data into the system, enabling them to write a webshell to a public folder and run arbitrary code on the server.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
Koollab LMS users, especially administrators and teachers who have access to the manual mark assessment feature.
Real-world impact
An attacker could take full control of the LMS server, steal sensitive data, and potentially spread malware to other systems.
Why this severity
The CVSS score of 9.9 reflects that the flaw can be exploited over the network with low effort, and it gives an attacker full control over the server, compromising confidentiality, integrity, and availability.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources