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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/chamilo/chamilo-lms/commit/d3355d7873c7e5b907c5fa84cbd5d9b62ed33e51	Patch
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-557g-2w66-gpmf	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Chamilo LMS es un sistema de gestión del aprendizaje. Anteriormente a la 1.11.38, un ataque encadenado puede habilitar código PHP que de otro modo estaría bloqueado desde el directorio main/install/ y permitir a un atacante no autenticado modificar archivos existentes o crear nuevos archivos donde lo permitan los permisos del sistema. Esto solo afecta a los portales con el directorio main/install/ aún presente y accesible para lectura. Esta vulnerabilidad está corregida en la versión 1.11.38.

Information

Published : 2026-04-10 19:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-33698

Mitre link : CVE-2026-33698

CVE.ORG link : CVE-2026-33698

JSON object : View

Products Affected

chamilo

chamilo_lms

CWE

CWE-552

Files or Directories Accessible to External Parties

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