Jupiter X Core: Cross-site scripting
Jupiter X Core is affected by cross-site scripting. Exploitation requires at least subscriber-level access. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is <= 4.14.1.
- Component
- Jupiter X Core
- Plugin slug
jupiterx-core- Affected
- <= 4.14.1
- Safe version
> 4.14.1- Published
- Mar 24, 2026
This CVE was published Mar 24, 2026 and is one of 15 known issues for this plugin.
Update, patch or deactivate.
Update Jupiter X Core to a release after 4.14.1, or disable and remove it until a fixed version is available.
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 Jupiter X Core plugin for WordPress is vulnerable to limited file uploads due to missing authorization on import_popup_templates() function as well as insufficient file type validation in the upload_files() function in all versions up to, and including, 4.14.1. This makes it possible for Authenticated attackers with Subscriber-level access and above, to upload files with dangerous types that can lead to Remote Code Execution on servers configured to handle .phar files as executable PHP (e.g., Apache+mod_php), or Stored Cross-Site Scripting via .svg, .dfxp, or .xhtml files upload on any server configuration
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H