# CVE-2026-119183: JetFormBuilder Stored Cross-Site Scripting via form field mapping

Source: https://junglewise.ai/threats/cve-2026-119183-the-jetformbuilder-dynamic-blocks-form-builder-plugin-for  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-07. Updated: 2026-11-07  
License: CC BY 4.0 with a link back

CVE-2026-119183 · Severity: high · CVSS 7.2 · Published 2026-11-07

JetFormBuilder is a WordPress plugin for building forms with dynamic content. An unauthenticated attacker can inject malicious JavaScript that persists in the database through a public form's post meta field, causing the script to execute for all users viewing pages that reference this data. This allows attackers to steal sensitive information, hijack user sessions, or deface website content without needing any special access or authentication.

Technologies: [Crocoblock JetFormBuilder](https://junglewise.ai/threats/technologies/jetformbuilder). Vendors: [Crocoblock](https://junglewise.ai/threats/vendors/crocoblock).

## Quick answers

**Is CVE-2026-119183 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-119183 being exploited in the wild.

**How severe is CVE-2026-119183?** High severity, with a CVSS score of 7.2, published 7 November 2026.

**Which products and versions are affected?** Crocoblock JetFormBuilder up to and including 3.6.8.

**Is there a fix for CVE-2026-119183?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-119183 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-119183?** Check whether you run Crocoblock JetFormBuilder 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

The plugin fails to properly sanitize and escape form field values when mapping user input to post meta keys that are subsequently referenced by Calculated Fields via the %META::key% macro. An unauthenticated attacker can craft a POST request to a public Insert Post form that injects arbitrary HTML/JavaScript into a post meta field; the payload persists and executes in the browser context of any user viewing a page containing a Calculated Field that references the compromised meta key.

## Affected products

- Crocoblock JetFormBuilder up to and including 3.6.8

## Timeline

- 2026-11-07: disclosed

## References

- [https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.7/includes/blocks/render/calculated-field-render.php](https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.7/includes/blocks/render/calculated-field-render.php)
- [https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.7/modules/actions-v2/insert-post/insert-post-action.php](https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.6.7/modules/actions-v2/insert-post/insert-post-action.php)

## Related threats

- [Crocoblock JetFormBuilder stored cross-site scripting](https://junglewise.ai/threats/cve-2026-123482-improper-neutralization-of-input-during-web-page-generation)
- [Crocoblock JetFormBuilder cross-site scripting vulnerability](https://junglewise.ai/threats/cve-2026-123484-improper-neutralization-of-input-during-web-page-generation)
- [Crocoblock JetFormBuilder content injection in form pages](https://junglewise.ai/threats/cve-2026-123860-improper-neutralization-of-script-related-html-tags-in-a-web)
- [Crocoblock JetFormBuilder stored XSS in form fields](https://junglewise.ai/threats/cve-2026-123483-improper-neutralization-of-script-related-html-tags-in-a-web)
- [Crocoblock JetFormBuilder privilege escalation](https://junglewise.ai/threats/cve-2026-119481-incorrect-privilege-assignment-vulnerability-in-crocoblock)