CVE-2026-63232 SQL injection and unsafe deserialisation vulnerability
Authenticated attackers can exploit SQL injection and unsafe deserialization in Koollab LMS to write webshells and execute arbitrary code on the server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-63232?
CVE-2026-63232 is a critical SQL injection vulnerability in Three Learning Koollab LMS, published on 29 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment reinforcement endpoint, control data passed to unserialize(), write a webshell to a publicly accessible location, and execute arbitrary code on the server.
Weakness: CWE-89
Which versions are affected by CVE-2026-63232?
How do I fix CVE-2026-63232?
No fix has been published for CVE-2026-63232 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-63232 being exploited?
There is no known exploitation of CVE-2026-63232 in the wild and no public exploit code.
Sources
Also known as GHSA-pv86-vg4j-hq7j.