by Kastro
Paper/Archive/CVE-2021-24171

CVE-2021-24171

Unknown WooCommerce Upload Files — WooCommerce Upload Files < 59.4 - Unauthenticated Arbitrary File Upload

EPSS 2%CVSS 9.8
critical.is priorityof 100
45
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 79.7.797 × 2015.9No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
WooCommerce Upload Files59.4 – < 59.459.4CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refwpscan.com/vulnerability/ed4288a1-f7e4-455f-b765-5ac343f87194refwordfence.com/blog/2021/03/critical-vulnerability-patched-in-woocommerce-upload-files