Critical severity9.8NVD Advisory· Published Apr 5, 2021· Updated Jun 17, 2026
CVE-2021-24171
CVE-2021-24171
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3<59.4+ 1 more
- (no CPE)range: <59.4
- (no CPE)range: <59.4
- cpe:2.3:a:vanquish:woocommerce_upload_files:*:*:*:*:*:wordpress:*:*Range: <59.4
Patches
Vulnerability mechanics
References
2- wpscan.com/vulnerability/ed4288a1-f7e4-455f-b765-5ac343f87194nvdThird Party Advisory
- www.wordfence.com/blog/2021/03/critical-vulnerability-patched-in-woocommerce-upload-files/nvdThird Party Advisory
News mentions
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