CVE-2026-32931
Chamilo LMS has Arbitrary File Upload via MIME-Only Validation in Exercise Sound Upload Leads to RCE
CVSS Score
7.5
EPSS Score
0.2%
EPSS Percentile
37th
Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, an unrestricted file upload vulnerability in the exercise sound upload function allows an authenticated teacher to upload a PHP webshell by spoofing the Content-Type header to audio/mpeg. The uploaded file retains its original .php extension and is placed in a web-accessible directory, enabling Remote Code Execution as the web server user (www-data). This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.
| CWE | CWE-434 |
| Vendor | chamilo |
| Product | chamilo-lms |
| Published | Apr 10, 2026 |
| Last Updated | Apr 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
chamilo / chamilo-lms
< 1.11.38 >= 2.0.0-alpha.1, < 2.0.0-RC.3