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4.3

Ninja Forms - Excel Export plugin allows attackers to write files

CVE-2026-15160 · published 3 months ago
Summary

The Ninja Forms - Excel Export plugin for WordPress is vulnerable to a security issue that allows attackers to write files to any location on the server. This could be used to stage further attacks. If you're using this plugin, update to a newer version to fix the issue.

Original advisory text
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 p...
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.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
4.3 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-22Path Traversal
Timeline
Published17 Jul 2026
Updated4 Nov 2026
First seen17 Jul 2026
Sources
CVE-2026-15160 · NVD
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