CVE-2018-25158 HIGH

CVE-2018-25158: Chamilo LMS 1.11.8 Arbitrary File Upload via elfinder

Vendor Chamilo
Product Chamillo LMS
Weakness CWE-434 · Unrestricted file upload
Published February 20, 2026
Last update April 7, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Chamilo LMS 1.11.8 contains an arbitrary file upload vulnerability that allows authenticated users to upload and execute PHP files through the elfinder filemanager module. Attackers can upload files with image headers in the social myfiles section, rename them to PHP extensions, and execute arbitrary code by accessing the uploaded files.

Key dates

02Disclosure timeline

February 20, 2026 CVE published
April 7, 2026 Record updated