Ninja Forms plugin for WordPress versions 3.10.4 through 3.14.9 contains an unauthenticated stored cross-site scripting vulnerability in the Repeatable Fieldset feature where parseSubmissionIndex() accepts arbitrary strings as submission indexes without numeric validation, and admin_form_element() interpolates the index directly into HTML without escaping. An unauthenticated attacker can submit a public form with a crafted repeater child key containing malicious script payloads, which execute in an administrator's browser when viewing submissions in the WordPress admin panel, enabling session-cookie theft, creation of administrator accounts, installation of malicious plugins, and arbitrary modification of site content.

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Fixes

Solution

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Workaround

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History

Tue, 21 Jul 2026 23:15:00 +0000

Type Values Removed Values Added
First Time appeared Saturday Drive
Saturday Drive ninja Forms
Wordpress
Wordpress wordpress
Vendors & Products Saturday Drive
Saturday Drive ninja Forms
Wordpress
Wordpress wordpress

Tue, 21 Jul 2026 22:30:00 +0000

Type Values Removed Values Added
First Time appeared Ninjaforms
Ninjaforms ninja Forms
CPEs cpe:2.3:a:ninjaforms:ninja_forms:*:*:*:*:*:wordpress:*:*
Vendors & Products Ninjaforms
Ninjaforms ninja Forms

Tue, 21 Jul 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 21 Jul 2026 14:45:00 +0000

Type Values Removed Values Added
Description Ninja Forms plugin for WordPress versions 3.10.4 through 3.14.9 contains an unauthenticated stored cross-site scripting vulnerability in the Repeatable Fieldset feature where parseSubmissionIndex() accepts arbitrary strings as submission indexes without numeric validation, and admin_form_element() interpolates the index directly into HTML without escaping. An unauthenticated attacker can submit a public form with a crafted repeater child key containing malicious script payloads, which execute in an administrator's browser when viewing submissions in the WordPress admin panel, enabling session-cookie theft, creation of administrator accounts, installation of malicious plugins, and arbitrary modification of site content.
Title Ninja Forms Unauthenticated Stored Cross-Site Scripting via Repeatable Fieldset Submission Index
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-07-22T14:56:24.647Z

Reserved: 2026-07-21T14:05:53.719Z

Link: CVE-2026-65048

cve-icon Vulnrichment

Updated: 2026-07-21T16:42:25.328Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-21T23:00:04Z

Weaknesses