JetEngine unauthenticated SVG upload permits stored XSS
JetEngine before 3.8.13.1 does not sanitize uploaded SVG files before storing and serving them and does not adequately restrict who can upload them. On a site with a JetEngine form configured to accept public file uploads, an unauthenticated attacker can upload an SVG containing JavaScript, which executes in the browser of any user who opens the file.
- Component
- JetEngine
- Plugin slug
jet-engine- Affected
- < 3.8.13.1
- Safe version
3.8.13.1- Published
- Aug 10, 2026
This CVE was published Aug 10, 2026 and is one of 32 known issues for this plugin.
Update, patch or deactivate.
Update to 3.8.13.1 or later. Remove untrusted SVG uploads, review upload and access logs for suspicious SVG requests, and invalidate privileged sessions if an Administrator may have opened a malicious file.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The JetEngine WordPress plugin before 3.8.13.1 does not sanitise uploaded SVG files before storing and serving them, and does not adequately restrict who can upload them, allowing unauthenticated attackers to upload a file containing malicious JavaScript that executes in the browser of any user who opens it (Stored Cross-Site Scripting).
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N