cvedb.io
CVE-2026-33704
HIGH · CVSS 7.1
EPSS exploitation probability: 0%
Published 2026-04-10T19:16:23.480 · Last modified 2026-06-17T10:37:57.287

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 is handled as PHP, this leads to Remote Code Execution. This vulnerability is fixed in 1.11.38.

Affected products

chamilo — chamilo_lms

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.