Ninja Forms - Excel Export <= 3.3.6 - Missing Authorization to Authenticated (Subscriber+) XLS Write via Path Traversal

4.3
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE CVE-2026-15160
CVSS 4.3 (Medium)
Publicly Published July 16, 2026
Last Updated July 17, 2026
Researcher Chu Thao Mai

Description

The Ninja Forms - Excel Export plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 3.3.6 via the 'spreadsheet_export_tmp_name' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to write .xls/.xlsx files to arbitrary locations on the server, which can be used to stage further attacks.

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Vulnerability Details for Ninja Forms - Excel Export

Software Type Plugin
Software Slug ninja-forms-excel-export
Patched? Yes
Remediation Update to version 3.3.7, or a newer patched version
Affected Version
  • <= 3.3.6
Patched Version
  • 3.3.7

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