CVE-2021-31933

HIGH

Chamilo < 1.11.14 - Remote Code Execution

Title source: rule

Description

A remote code execution vulnerability exists in Chamilo through 1.11.14 due to improper input sanitization of a parameter used for file uploads, and improper file-extension filtering for certain filenames (e.g., .phar or .pht). A remote authenticated administrator is able to upload a file containing arbitrary PHP code into specific directories via main/inc/lib/fileUpload.lib.php directory traversal to achieve PHP code execution.

Exploits (1)

exploitdb WORKING POC VERIFIED

by M. Cory Billington · pythonwebappsphp

https://www.exploit-db.com/exploits/49867

View Code ZIP pw:eip

References (4)

[Exploit, Third Party Advisory, VDB Entry] http://packetstormsecurity.com/files/162572/Chamilo-LMS-1.11.14-Remote-Code-Execution.html

[Patch, Third Party Advisory] https://github.com/chamilo/chamilo-lms/commit/229302139e8d23bf6862183cf219b967f6e2fbc1

[Patch, Third Party Advisory] https://github.com/chamilo/chamilo-lms/commit/f65d065061a77bb2e84f73217079ce3998cf3453

[Patch, Vendor Advisory] https://support.chamilo.org/projects/1/wiki/Security_issues#Issue-48-2021-04-17-Critical-impact-high-risk-Remote-Code-Execution

Scores

CVSS v3 7.2

EPSS 0.1478

EPSS Percentile 94.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-706

Status published

Affected Products (1)

chamilo/chamilo < 1.11.14

Timeline

Published Apr 30, 2021

Tracked Since Feb 18, 2026