CVE-2018-1999019: Chamilo Lms

Critical severity, CVSS 9.8. EPSS: 3.2% chance of exploitation in the next 30 days.

Chamilo LMS version 11.x contains an Unserialization vulnerability in the "hash" GET parameter for the api endpoint located at /webservices/api/v2.php that can result in Unauthenticated remote code execution. This attack appear to be exploitable via a simple GET request to the api endpoint. This vulnerability appears to have been fixed in After commit 0de84700648f098c1fbf6b807dee28ec640efe62.

Affected products

• Chamilo Chamilo Lms: version 1.11.0 only; version 1.11.2 only; version 1.11.4 only; version 1.11.6 only; version 1.11.8 only

Published 2018-07-23. Last modified 2026-06-17.