Everest Toolkit demo imports let multisite Administrators upload PHP
Everest Toolkit through 1.2.3 disables WordPress's file-type test during demo-content import. A user with the import capability, Administrator by default, can upload an executable PHP file into the uploads directory. This crosses an important boundary on multisite because a subsite Administrator who is not a network Super Admin can place server-executable code. The record does not disclose the import endpoint, upload parameter, capability check, destination path or whether web-server PHP execution in uploads is required.
- Component
- Everest Toolkit
- Plugin slug
everest-toolkit- Affected
- <= 1.2.3
- Safe version
- See mitigation notes
- Published
- Aug 01, 2026
- Weakness
- Not assigned
This CVE was published Aug 01, 2026 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
No fixed public release is identified for Everest Toolkit through 1.2.3. Restrict demo imports to trusted network administrators or deactivate the plugin when warranted until a corrected release is available. Review uploads and import activity for PHP files, remove confirmed payloads, rotate exposed secrets, and investigate the host if an uploaded file executed.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
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 Everest Toolkit WordPress plugin through 1.2.3 does not validate the type of files uploaded during demo-content import (the WordPress file-type test is disabled), allowing high-privilege users (Administrator by default, including non-super-admin site administrators on multisite) to upload executable PHP files to the uploads directory.