Vulnerabilities / JetFormBuilder — Dynamic Blocks Form Builder / WPSEC-2026-1438
JetFormBuilder — Dynamic Blocks Form Builder <= 3.6.7 - Unauthenticated Stored Cross-Site Scripting via Preset Field Values
High 7.2
CWE-79Fixed in 3.6.7.1
- ID
- WPSEC-2026-1438
- Plugin
- JetFormBuilder — Dynamic Blocks Form Builder (jetformbuilder)
- Affected
- all versions before 3.6.7.1
- Remediation
- Update to 3.6.7.1 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-10-22
- Attack surface
- JetFormBuilder — Dynamic Blocks Form Builder on WPSec AttackSurface
- Fix released
- Published
Description
The JetFormBuilder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via form field preset values in all versions up to, and including, 3.6.7, due to field default values filled from a preset source (such as stored form records, post or user meta, or URL query variables) being treated as calculated formulas when they contain macro syntax and evaluated as JavaScript by the frontend formula engine. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute in another user's browser when that user views a page containing the affected form.
References
- https://wpsec.com/vuln/WPSEC-2026-1438/
- https://plugins.svn.wordpress.org/jetformbuilder/tags/3.6.7.1/
- https://wordpress.org/plugins/jetformbuilder/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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