What’s Vulnerable › Vulnerabilities

CVE-2026-3533: JupiterX Core <= 4.14.1 - Authenticated (Subscriber+) Missing Authorization To Limited File Upload via Popup Template Import

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-24 · updated 2026-06-17
• Weakness: CWE-434

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

Affected products

• artbees Jupiter X Core: through 4.14.1

References

• 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

Get alerted when CVE-2026-3533 or the next vulnerability affects your stack