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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.

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Affected products

2
  • Chamilo/Chamilo Lms2 versions
    cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*range: <1.11.38
    • (no CPE)range: <1.11.38

Patches

Vulnerability mechanics

References

2

News mentions

0

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