# CVE-2026-54188: Jetimpex JetEngine unauthenticated XSS

Source: https://junglewise.ai/threats/cve-2026-54188-jetimpex-jetengine-unauthenticated-xss  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-17. Updated: 2026-06-20  
License: CC BY 4.0 with a link back

CVE-2026-54188 · Severity: high · CVSS 7.1 · Published 2026-06-17

JetEngine is a popular WordPress plugin used to create dynamic content and custom website structures. A security flaw in versions up to 3.8.10 allows attackers to inject malicious scripts into the website. If a site administrator or visitor interacts with a specially crafted link, the attacker could potentially steal session information, redirect users to malicious sites, or perform unauthorized actions on the website.

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

## Quick answers

**Is CVE-2026-54188 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-54188 being exploited in the wild.

**How severe is CVE-2026-54188?** High severity, with a CVSS score of 7.1, published 17 June 2026.

**Which products and versions are affected?** Crocoblock JetEngine <= 3.8.10.

**Is there a fix for CVE-2026-54188?** A patch was published on 2026-06-17: Patch available in version 3.8.10.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-54188 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-54188?** 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.

## Technical details

A Cross-Site Scripting (XSS) vulnerability exists in the JetEngine plugin for WordPress (versions <= 3.8.10) due to improper neutralization of input during web page generation (CWE-79). The vulnerability is unauthenticated, meaning an attacker does not need an account on the target site to initiate the attack. However, successful exploitation requires user interaction, such as a victim clicking a malicious link or visiting a crafted page. This can lead to the execution of arbitrary JavaScript in the context of the victim's browser session, potentially allowing for session hijacking or site defacement. The issue is resolved in version 3.8.10.1.

## Affected products

- Jetimpex Inc. (Crocoblock) JetEngine <= 3.8.10

## Timeline

- 2026-06-08: other: Reported by VanTastic
- 2026-06-16: disclosed: Published by Patchstack
- 2026-06-17: advisory: NVD published date
- 2026-06-17: patched: Patch available in version 3.8.10.1

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/jet-engine/vulnerability/wordpress-jetengine-plugin-3-8-10-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/jet-engine/vulnerability/wordpress-jetengine-plugin-3-8-10-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)