Stored Cross-Site Scripting Vulnerability in Ninja Forms by Kevin Stover
CVE-2026-110899

7.1HIGH

Key Information:

Vendor

WordPress
Status
Ninja Forms
Vendor
CVE Published:
21 October 2026

What is CVE-2026-110899?

A vulnerability in Ninja Forms, developed by Kevin Stover, allows for an exploit known as Stored Cross-Site Scripting (XSS). This security flaw permits attackers to inject malicious scripts into web pages generated by the affected plugin. As a result, any user accessing these pages may unknowingly execute the harmful script, leading to potential data theft and compromised accounts. The issue affects all versions from n/a through 3.15.5, making it crucial for users to update their plugins to prevent exploitation.

Affected Version(s)

Ninja Forms 0 <= 3.15.5

References

https://patchstack.com/database/wordpress/plugin/ninja-fo...
vdb-entry

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kwak Do Hun(곽도훈) | Patchstack Bug Bounty Program
.