Zegen Core: Dangerous file upload
Zegen Core is affected by dangerous file upload. The vulnerable path is reachable without authentication. Successful exploitation can place attacker-controlled executable content on the server and may lead to full site compromise.
- Component
- Zegen Core
- Plugin slug
zegen-core- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Nov 21, 2025
This CVE was published Nov 21, 2025 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update Zegen Core to a release outside the affected range, or disable and remove it until a fixed version is available.
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 Zegen Core plugin for WordPress is vulnerable to Cross-Site Request Forgery to Arbitrary File Upload in versions up to, and including, 2.0.1. This is due to missing nonce validation and missing file type validation in the '/custom-font-code/custom-fonts-uploads.php' file. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H