# CVE-2026-107870: Crocoblock JetEngine DOM-based cross-site scripting

Source: https://junglewise.ai/threats/cve-2026-107870-improper-neutralization-of-input-during-web-page-generation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-14. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-107870 · Severity: high · CVSS 7.1 · Published 2026-10-14

JetEngine is a WordPress plugin that enables users to create dynamic websites with custom post types, forms, and page templates without coding. A DOM-based cross-site scripting (XSS) vulnerability allows attackers to inject malicious scripts that can steal visitor data or hijack user accounts when a privileged user interacts with a crafted link or page.

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

## Quick answers

**Is CVE-2026-107870 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-107870 being exploited in the wild.

**How severe is CVE-2026-107870?** High severity, with a CVSS score of 7.1, published 14 October 2026.

**Which products and versions are affected?** Crocoblock JetEngine through 3.8.16.

**Is there a fix for CVE-2026-107870?** Yes: fixed in 3.8.16.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-107870 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-107870?** Check whether you run Crocoblock JetEngine 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.

## How to fix

- Fixed in 3.8.16.1

## Technical details

A DOM-based XSS vulnerability exists in JetEngine's web page generation that fails to properly neutralize user-supplied input, allowing attackers to inject arbitrary scripts. The vulnerability requires user interaction and can be triggered by unauthenticated attackers, but successful exploitation depends on a privileged user (e.g., admin) clicking a malicious link or visiting a crafted page. The vulnerability is fixed in version 3.8.16.1.

## Affected products

- Crocoblock JetEngine through 3.8.16

## Timeline

- 2026-10-12: disclosed: Reported to Patchstack
- 2026-10-14: advisory

## References

- [https://crocoblock.com/](https://crocoblock.com/)
- [https://patchstack.com/database/wordpress/plugin/jet-engine/vulnerability/wordpress-jetengine-plugin-3-8-16-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/jet-engine/vulnerability/wordpress-jetengine-plugin-3-8-16-cross-site-scripting-xss-vulnerability?_s_id=cve)

## Related threats

- [Crocoblock JetEngine stored cross-site scripting](https://junglewise.ai/threats/cve-2026-125785-improper-neutralization-of-input-during-web-page-generation)
- [Crocoblock JetEngine stored cross-site scripting](https://junglewise.ai/threats/cve-2026-123477-improper-neutralization-of-input-during-web-page-generation)
- [Crocoblock JetEngine SQL injection](https://junglewise.ai/threats/cve-2026-39736-improper-neutralization-of-special-elements-used-in-an-sql)
- [Crocoblock JetEngine broken access control](https://junglewise.ai/threats/cve-2026-39735-missing-authorization-vulnerability-in-crocoblock-jetengine-jet)
- [Crocoblock JetEngine SQL injection vulnerability](https://junglewise.ai/threats/cve-2026-115608-improper-neutralization-of-special-elements-used-in-an-sql)