Categories
CVE-2026-33704

Chamilo LMS Affected by Authenticated Arbitrary File Write via BigUpload endpoint

Summary

Chamilo LMS Affected by Authenticated Arbitrary File Write via BigUpload endpoint

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

References

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