CVE-2026-15159: Saturdaydrive Ninja Forms - Excel Export

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

The Ninja Forms - Excel Export plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.3.6 via the 'spreadsheet_export_form_id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to enumerate any Ninja Forms form ID and download all stored submission data — including names, email addresses, phone numbers, physical addresses, and any other PII collected by site forms — as a downloadable XLSX file.

Affected products

• Saturdaydrive Ninja Forms - Excel Export: up to and including 3.3.6

Published 2026-07-17. Last modified 2026-07-17.