# CVE-2026-17019: JetEngine stored cross-site scripting via SVG file upload

Source: https://junglewise.ai/threats/cve-2026-17019-jetengine-stored-cross-site-scripting-via-svg-file-upload  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-10. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-17019 · Severity: medium · CVSS 6.1 · Published 2026-08-10

JetEngine is a WordPress plugin that enables forms and content creation. The plugin fails to properly validate SVG file uploads, allowing unauthenticated attackers to upload malicious files containing JavaScript code. When site administrators or other users view these files, the embedded malicious code executes in their browser with their privileges, potentially leading to account takeover or unauthorized site modifications.

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

## Quick answers

**Is CVE-2026-17019 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-17019 being exploited in the wild.

**How severe is CVE-2026-17019?** Medium severity, with a CVSS score of 6.1, published 10 August 2026.

**Which products and versions are affected?** Crocoblock JetEngine before 3.8.13.1.

**Is there a fix for CVE-2026-17019?** A patch was published on 2026-08-10: Fixed in version 3.8.13.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-17019 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-17019?** 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

This is a stored cross-site scripting (XSS) vulnerability in the JetEngine WordPress plugin versions before 3.8.13.1. The plugin fails to sanitize SVG files before storing them and does not adequately restrict upload permissions, allowing unauthenticated attackers to upload SVG files containing embedded JavaScript. The vulnerable endpoint (jet-engine-forms-upload-file AJAX action) accepts file uploads when a form is configured with file-upload fields set to "Any user" capability. Attackers can extract the upload nonce from public page source, craft a malicious SVG containing JavaScript, and upload it without authentication. The uploaded files are served with image/svg+xml content-type, causing the JavaScript to execute in the context of the site's origin when accessed by any user, particularly administrators. The vulnerability was fixed in version 3.8.13.1.

## Affected products

- Crocoblock JetEngine before 3.8.13.1

## Timeline

- 2026-08-05: disclosed: Publicly disclosed via WPScan
- 2026-08-10: patched: Fixed in version 3.8.13.1
- 2026-08-10: advisory: NVD advisory published

## References

- [https://wpscan.com/vulnerability/355ea90d-9fb3-4dc6-9676-48e5255fbc77/](https://wpscan.com/vulnerability/355ea90d-9fb3-4dc6-9676-48e5255fbc77/)

## 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)