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.
Metrics
Affected Vendors & Products
References
History
Mon, 13 Apr 2026 16:15:00 +0000
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ssvc
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Mon, 13 Apr 2026 13:00:00 +0000
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Chamilo
Chamilo chamilo Lms |
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| Vendors & Products |
Chamilo
Chamilo chamilo Lms |
Fri, 10 Apr 2026 19:00:00 +0000
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| 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. | |
| Title | Chamilo LMS Affected by Authenticated Arbitrary File Write via BigUpload endpoint | |
| Weaknesses | CWE-434 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-04-10T18:30:48.478Z
Updated: 2026-04-13T16:04:11.514Z
Reserved: 2026-03-23T17:06:05.746Z
Link: CVE-2026-33704
Updated: 2026-04-13T16:04:07.830Z
Status : Undergoing Analysis
Published: 2026-04-10T19:16:23.480
Modified: 2026-04-13T15:02:06.187
Link: CVE-2026-33704
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