PT-2026-32019 · Chamilo · Chamilo Lms

Published 2026-04-10 · Updated 2026-04-10 · CVE-2026-33704

NVD

CVSS v3.1

7.1

High

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

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.

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2026-33704

Affected Products

Chamilo Lms

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-33704 · Security Note
• https://github.com/chamilo/chamilo-lms/commit/9748f1ffbdb8b6dc84c0e0591c9d3c1d92e21c00 · Note
• https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-phfx-pwwg-945v · Note