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Critical · 9.3 CVE-2026-33698 EUVD-2026-21539

Chamilo LMS affected by unauthenticated RCE in main/install folder

Published Apr 10, 2026 · Updated Apr 15, 2026 · Assigned by GitHub_M

Description

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

VendorProductAffectedFixed
chamilo chamilo-lms < 1.11.38 —

References