7.2High

CVE-2026-94504Ninja Forms – The Contact Form Builder That Grows With You <= 3.15.3 - Stored Cross-Site Scripting

kstover Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder Published: 2026-09-22 09:39 (1 month ago)

Description

Ninja Forms 3.15.3 stores an anonymous non-RTE textarea value and renders it without safe HTML encoding in the legacy submission editor. An attacker can break out of the textarea with stored script. When an Administrator opens the attacker-known direct submission URL, the script runs in the WordPress admin origin.

Weakness (CWE): CWE-79

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
kstover	Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder	≤ 3.15.3

References and patches

CVSS score

7.2High

Source: Wordfence · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

All scores (2)

cna	CVSS 3.1	7.2High
security@wordfence.com	CVSS 3.1	7.2High

EPSS (chance of exploitation in 30 days)

0.62%

higher than 50% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: yes
Technical impact: partial

Timeline

ID reserved2026-09-21
Published2026-09-22 09:39
Reached IP-DB2026-10-24 23:42
Last updated2026-09-22 22:04

Assigned by (CNA): Wordfence
NVD status: Deferred

View at source: CVE.org · NVD

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