Vulnerability Description
The WooCommerce Upload Files WordPress plugin before 59.4 ran a single sanitization pass to remove blocked extensions such as .php. It was possible to bypass this and upload a file with a PHP extension by embedding a "blocked" extension within another "blocked" extension in the "wcuf_file_name" parameter. It was also possible to perform a double extension attack and upload files to a different location via path traversal using the "wcuf_current_upload_session_id" parameter.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vanquish | Woocommerce Upload Files | < 59.4 |
Related Weaknesses (CWE)
References
- https://wpscan.com/vulnerability/ed4288a1-f7e4-455f-b765-5ac343f87194Third Party Advisory
- https://www.wordfence.com/blog/2021/03/critical-vulnerability-patched-in-woocommThird Party Advisory
- https://wpscan.com/vulnerability/ed4288a1-f7e4-455f-b765-5ac343f87194Third Party Advisory
- https://www.wordfence.com/blog/2021/03/critical-vulnerability-patched-in-woocommThird Party Advisory
FAQ
What is CVE-2021-24171?
CVE-2021-24171 is a vulnerability with a CVSS score of 9.8 (CRITICAL). The WooCommerce Upload Files WordPress plugin before 59.4 ran a single sanitization pass to remove blocked extensions such as .php. It was possible to bypass this and upload a file with a PHP extensio...
How severe is CVE-2021-24171?
CVE-2021-24171 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-24171?
Check the references section above for vendor advisories and patch information. Affected products include: Vanquish Woocommerce Upload Files.