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CVE-2026-65049

HIGH 8.4 CVSS 4.0
Published
July 21, 2026
Last modified
October 24, 2026
NVD status
Deferred
Reported by
disclosure@vulncheck.com
Weakness
CWE-863
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Description

Ninja Forms plugin version 3.14.8 and prior for WordPress Multisite contains an incorrect authorization vulnerability that allows a subsite Administrator to trigger network-wide deletion of all Ninja Forms data by exploiting a site-scoped capability check combined with unsafe multisite migration defaults. Attackers can send a crafted POST request to the admin-ajax.php endpoint with the nf_delete_all_data action and a per-site nonce to invoke migration routines that unconditionally iterate all blogs via switch_to_blog(), dropping all nf3_* tables and clearing options and transients across every subsite in the network without requiring super-admin or network-admin privileges.

Affected WordPress components

  • Ninja Forms – The Contact Form Builder That Grows With You Plugin · ninja-forms
    Confirmed match Active
    Version 3.14.9; Before 3.14.9
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Saturday Drive Ninja Forms — Before 3.14.9

References

  • wordpress.org https://wordpress.org/plugins/ninja-forms/
  • wordpress.org https://wordpress.org/plugins/ninja-forms/changelog/
  • www.vulncheck.com https://www.vulncheck.com/advisories/ninja-forms-cross-site-network-wide-data-deletion-on-wordpress-multisite-via-nf-delete-all-data-ajax-action
  • nvd.nist.gov Official NVD record