Vulnerability 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
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/jupiterx-core/trunk/includes/control-
- https://plugins.trac.wordpress.org/browser/jupiterx-core/trunk/includes/extensio
- https://plugins.trac.wordpress.org/browser/jupiterx-core/trunk/includes/extensio
- https://www.wordfence.com/threat-intel/vulnerabilities/id/70bc5247-525d-4aae-9d6
FAQ
What is CVE-2026-3533?
CVE-2026-3533 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 uplo...
How severe is CVE-2026-3533?
CVE-2026-3533 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-3533?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.