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CVE PROGRAM SOURCE RECORD5.1 Medium

CVE-2026-67187

Ninja Forms WordPress Plugin < 3.15.4 Server-Side Validation Bypass via List Fields

Description

Ninja Forms plugin for WordPress before 3.15.4 contains an incomplete server-side validation vulnerability that allows unauthenticated attackers to submit arbitrary values to Checkbox List, Multi-Select List, Image List, Country, and State fields because NF_Abstracts_List falls through to a validate() method that only checks required-field presence. Attackers can submit crafted formula payloads through the unauthenticated nf_ajax_submit endpoint that bypass CSV escaping applied only to Textbox and Textarea fields, resulting in CSV injection when an administrator downloads and opens the exported submissions file.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Saturday Drive Ninja Forms

Default version status: unaffected

  • 0 to < 3.15.4affected

References