HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-33704 — Chamilo LMS is a learning management system. Prior to 1.11.38, any authenticated...

·Source: NIST NVD

Updated:

Executive Summary

Chamilo LMS is a learning management system. Prior to 1.11.38, any authenticated user (including students) can write arbitrary content to files on the server via the BigUpload endpoint. The key parameter controls the filename and the raw POST body becomes the file content. While .php extensions are filtered to .phps, the .pht extension passes through unmodified. On Apache configurations where .pht

Analysis

Chamilo LMS is a learning management system. Prior to 1.11.38, any authenticated user (including students) can write arbitrary content to files on the server via the BigUpload endpoint. The key parameter controls the filename and the raw POST body becomes the file content. While .php extensions are filtered to .phps, the .pht extension passes through unmodified. On Apache configurations where .pht is handled as PHP, this leads to Remote Code Execution. This vulnerability is fixed in 1.11.38. CVSS Score: 7.1. Published: 2026-04-10T19:16:23.480.

Indicators of Compromise (1)

CVE (1)
CVE-2026-33704
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Apr 10, 2026. Verified by: NIST.

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