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CVE-2026-33704

8.8 high SSVC exploitation: none Analyzed
NVD · CVE.org

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

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 8.8 · chamiloNVD modified 2026-10-26 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*

References 2