CVE-2026-15159 Information disclosure in Ninja Forms - Excel Export
Authenticated subscribers can download sensitive PII from any Ninja Forms submission by manipulating the export form ID parameter.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15159?
CVE-2026-15159 is a medium-severity vulnerability in SaturdayDrive Ninja Forms - Excel Export, published on 17 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-15159?
How do I fix CVE-2026-15159?
No fix has been published for CVE-2026-15159 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-15159 being exploited?
There is no known exploitation of CVE-2026-15159 in the wild and no public exploit code.
Sources
Also known as GHSA-c8hw-hm2h-46fp.