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

16 Apr 2026, 18:48

Type	Values Removed	Values Added
CPE		cpe:2.3:a:chamilo:chamilo_lms::::::::
References	~~() https://github.com/chamilo/chamilo-lms/commit/d3355d7873c7e5b907c5fa84cbd5d9b62ed33e51 -~~	() https://github.com/chamilo/chamilo-lms/commit/d3355d7873c7e5b907c5fa84cbd5d9b62ed33e51 - Patch
References	~~() https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-557g-2w66-gpmf -~~	() https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-557g-2w66-gpmf - Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
First Time		Chamilo chamilo Lms Chamilo

10 Apr 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-10 19:16

Updated : 2026-04-16 18:48

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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