CVE-2021-31933: High severity chamilo lms vulnerability
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.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2021-31933?
CVE-2021-31933 is a remote code execution vulnerability in Chamilo through 1.11.14.
How does CVE-2021-31933 occur?
CVE-2021-31933 occurs due to improper input sanitization of a parameter used for file uploads, and improper file-extension filtering for certain filenames.
What is the severity level of CVE-2021-31933?
CVE-2021-31933 has a severity level of 7.2 (high).
Which software versions are affected by CVE-2021-31933?
Chamilo versions up to 1.11.14 are affected by CVE-2021-31933.
How can I fix CVE-2021-31933?
To fix CVE-2021-31933, it is recommended to update Chamilo to a version higher than 1.11.14.