CVE-2026-33698: Chamilo Lms

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Chamilo LMS is a learning management system. Prior to 1.11.38, a chained attack can enable otherwise-blocked PHP code from the main/install/ directory and allow an unauthenticated attacker to modify existing files or create new files where allowed by system permissions. This only affects portals with the main/install/ directory still present and read-accessible. This vulnerability is fixed in 1.11.38.

Affected products

• Chamilo Chamilo Lms: before 1.11.38 (fixed in 1.11.38)

Published 2026-04-10. Last modified 2026-06-17.