CVE-2026-15159CWE-639

Ninja Forms - Excel Export <= 3.3.6 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Data Disclosure via 'spreadsheet_export_form_id' Parameter

Medium · published July 17, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
19.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00281 · 19.5th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-07-17T02:31Z
EPSS history
Timeline
  • 17 JUL 02:31Z
    Ninja Forms - Excel Export <= 3.3.6 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Data Disclosure via 'spreadsheet_export_form_id' Parameter
    cvelistv5