High severity7.1NVD Advisory· Published Apr 10, 2026· Updated Apr 16, 2026
CVE-2026-33704
CVE-2026-33704
Description
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
1Patches
19748f1ffbdb8https://github.com/chamilo/chamilo-lmsvia nvd-ref
Vulnerability mechanics
Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
2News mentions
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