CVE-2026-81789
Deferred Deferred - Pending Action

Unauthenticated Arbitrary File Deletion in Advanced Product Fields Extended for WooCommerce

Publication date: 2026-09-10

Last updated on: 2026-09-10

Assigner: Patchstack

Description
Unauthenticated Arbitrary File Deletion in Advanced Product Fields Extended for WooCommerce <= 3.1.6 versions.

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Meta Information

Published
2026-09-10
Last Modified
2026-09-10
Generated
2026-09-10
AI Q&A
2026-09-10
EPSS Evaluated
N/A
NVD
CVE-2026-81789
EUVD
EUVD-2026-75522

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
advanced_product_fields advanced_product_fields_extended_for_woocommerce to 3.1.6 (inc)
advanced_product_fields extended_for_woocommerce to 3.1.6 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

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Executive Summary

CVE-2026-81789 is a high-severity vulnerability in the WordPress Advanced Product Fields Extended for WooCommerce plugin affecting versions 3.1.6 and earlier. It allows unauthenticated attackers to delete arbitrary files on a website, which could cause significant damage if core files are removed.

Detection Guidance

Check if the Advanced Product Fields Extended for WooCommerce plugin version 3.1.6 or earlier is installed on your WordPress site. Look for unexpected file deletions or modifications in the WordPress directory. Monitor server logs for suspicious activity targeting file deletion endpoints.

Impact Analysis

This vulnerability could allow attackers to delete critical files on your website, potentially breaking its functionality or making it inaccessible. It may also be exploited in mass campaigns targeting thousands of websites, increasing the risk of widespread damage.

Compliance Impact

This vulnerability could lead to unauthorized file deletion, potentially compromising sensitive data storage or backup files. For GDPR, this may result in unauthorized access or loss of personal data, violating integrity and availability principles. HIPAA compliance could be affected if protected health information is deleted or exposed due to the flaw.

Mitigation Strategies

Disable the Advanced Product Fields Extended for WooCommerce plugin immediately if you are using version 3.1.6 or earlier. Apply Patchstack's mitigation rule if available. Contact your hosting provider or developer for assistance. Avoid using the plugin until an official patch is released.

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