VULNERABILITY INTELLIGENCE
CVE-2021-31933
CVSS score7.2 HIGH
EPSS probability13.93%
CISA KEVNot currently listed
Published2021-04-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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.
Weakness classification
- nvd@nist.gov: CWE-706
Primary references
- cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
- cve@mitre.org — Patch, Third Party Advisory
- cve@mitre.org — Patch, Third Party Advisory
- cve@mitre.org — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory