CVE-2026-33698

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.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - security-advisories@github.com

Published

2026-04-10

Last modified

2026-10-26

Weaknesses

CWE-552

Affected products

• Chamilo-lms (Chamilo)
• Chamilo Lms (Chamilo)

References

• https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-557g-2w66-gpmf
• https://github.com/chamilo/chamilo-lms/commit/d3355d7873c7e5b907c5fa84cbd5d9b62ed33e51