WordPress CVEs

Description

The Pie Forms for WP plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.6 via the format_classic function. This is due to insufficient file type validation where the validate_classic method validates file extensions and sets error messages but does not prevent the file upload process from continuing. This makes it possible for unauthenticated attackers to upload files with dangerous extensions such as PHP, which makes remote code execution possible. In order to exploit this vulnerability, the attacker needs to guess the directory in which the file is placed (which is a somewhat predictable hash). In addition to that, the file name is generated using a secure hash method, limiting the exploitability of this vulnerability.

Affected WordPress components

• Pie Forms — Drag & Drop Form Builder Plugin · pie-forms-for-wp
  Confirmed match Active
  Up to and including 1.6
  View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

• genetechproducts Pie Forms — Drag & Drop Form Builder — Up to and including 1.6

References

• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/pie-forms-for-wp/tags/1.6/includes/fields/fileupload.php#L18
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/pie-forms-for-wp/tags/1.6/includes/fields/fileupload.php#L331
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/pie-forms-for-wp/tags/1.6/includes/fields/fileupload.php#L475
• www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/4941a0ce-67f1-430d-bbad-3c97a4ed449e?source=cve
• nvd.nist.gov Official NVD record