CVE-2026-15159 SaturdayDrive CVE debrief

Who should care

Administrators of WordPress sites using the Ninja Forms - Excel Export plugin should assess their exposure and apply updates to prevent potential data leaks. This vulnerability could impact site operators who have collected sensitive information through their forms, as well as security teams responsible for monitoring and protecting user data.

Technical summary

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. The vulnerability is due to missing validation on a user-controlled key, specifically the 'spreadsheet_export_form_id' parameter. This allows 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 Personally Identifiable Information (PII) collected by site forms, as a downloadable XLSX file.

Defensive priority

Medium priority due to the potential for data leakage and the relatively low CVSS score of 4.3.

Recommended defensive actions

• Apply the latest update for the Ninja Forms - Excel Export plugin.
• Restrict access to sensitive data exports.
• Monitor for suspicious download activities.
• Implement additional authentication checks for form data access.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-07-17T04:16:50.540Z and has not been modified since then. The vulnerability was reported by [email protected]. Evidence is limited to public sources and may not reflect the full scope or impact of the vulnerability. Defenders should verify affected deployments and assess potential exposure based on available information.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.