CVE-2026-9278: CodePeople Form Builder CP Stored XSS in form_structure

CVE-2026-9278 · Severity: info · CVSS 3.5 · Published 2026-06-15

The Form Builder CP plugin for WordPress, which is used to create and manage contact forms, contains a security flaw that allows users with Editor-level access to inject malicious scripts into forms. When a regular visitor or administrator views a page containing the compromised form, the script executes in their browser. This could lead to unauthorized actions being performed on behalf of the victim or the theft of sensitive session information.

Vendors: CodePeople.

Quick answers

Is CVE-2026-9278 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-9278 being exploited in the wild.
How severe is CVE-2026-9278?
Informational severity, with a CVSS score of 3.5, published 15 June 2026.
Which products and versions are affected?
CodePeople Form Builder CP < 1.2.47.
Is there a fix for CVE-2026-9278?
A patch was published on 2026-05-25: Fixed in version 1.2.47 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-9278 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-9278?
Check whether you run CodePeople Form Builder CP at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A Stored Cross-Site Scripting (XSS) vulnerability exists in the Form Builder CP plugin for WordPress due to insufficient sanitization of the 'form_structure' configuration value. Specifically, the 'ftype' parameter within the form structure is used in a client-side 'eval()' call (e.g., eval("new "+ftype+"()")) without proper validation. An authenticated attacker with Editor-level privileges or higher can inject a malicious JavaScript payload into this field. This payload executes in the context of any user who visits a page where the affected form is rendered via shortcode, even on multisite installations where 'unfiltered_html' is disabled. The issue is fixed in version 1.2.47.

Affected products

  • CodePeople Form Builder CP (cp-easy-form-builder) < 1.2.47

Timeline

  • 2026-05-25: disclosed: Publicly published by WPScan
  • 2026-05-25: patched: Fixed in version 1.2.47
  • 2026-06-15: advisory: NVD published date

References

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