{"id":"CVE-2026-67187","title":"Ninja Forms WordPress Plugin < 3.15.4 Server-Side Validation Bypass via List Fields","summary":"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 Sta…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","cvssSource":"cna","cwe":["CWE-1236"],"vendor":"Saturday Drive","product":"Ninja Forms","affected":["ninja_forms < 3.15.4"],"published":"2026-10-28","updated":"2026-10-28","sourceUpdated":"2026-10-28T15:19:16.649Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-67187","references":[{"url":"https://wordpress.org/plugins/ninja-forms/#developers","label":"WordPress Plugin Changelog"},{"url":"https://www.vulncheck.com/advisories/ninja-forms-wordpress-plugin-server-side-validation-bypass-via-list-fields","label":"VulnCheck Advisory: Ninja Forms WordPress Plugin < 3.15.4 Server-Side Validation Bypass via List Fields"}],"tags":["cve.org"],"ingestedAt":"2026-10-28T16:13:50.589Z","slug":"CVE-2026-67187","body":"## Overview\n\nNinja 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.\n\n## Affected\n\n- `ninja_forms < 3.15.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}