CVE-2026-3533

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

The following products are affected by CVE-2026-3533 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-3533.

URL	Resource
https://plugins.trac.wordpress.org/browser/jupiterx-core/trunk/includes/control-panel-2/includes/class-popup.php?rev=3430169#138
https://plugins.trac.wordpress.org/browser/jupiterx-core/trunk/includes/extensions/raven/includes/modules/forms/classes/ajax-handler.php?rev=3430169#L434
https://plugins.trac.wordpress.org/browser/jupiterx-core/trunk/includes/extensions/raven/includes/modules/forms/fields/file.php?rev=3430169#L214
https://www.wordfence.com/threat-intel/vulnerabilities/id/70bc5247-525d-4aae-9d66-efd65c9beee3?source=cve