Vulnerability Description
The Everest Forms plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 3.4.4. This is due to the `load_previous_field_value()` method in `class-evf-form-task.php` accepting arbitrary URL values from `$_POST` data for upload fields without domain restriction, which are then passed to `wp_remote_head()` in the `get_local_file_size()` method of `class-evf-form-fields-upload.php`. This makes it possible for unauthenticated attackers to force the WordPress server to make outbound HTTP HEAD requests to arbitrary URLs by submitting a form with an upload field containing a malicious URL while leaving a required field empty to trigger form re-rendering.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/everest-forms/trunk/includes/abstract
- https://plugins.trac.wordpress.org/browser/everest-forms/trunk/includes/class-ev
- https://plugins.trac.wordpress.org/changeset/3507814/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c5bbf7ed-c154-4153-adb
FAQ
What is CVE-2026-5096?
CVE-2026-5096 is a vulnerability with a CVSS score of 5.3 (MEDIUM). The Everest Forms plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 3.4.4. This is due to the `load_previous_field_value()` method in `class-evf-f...
How severe is CVE-2026-5096?
CVE-2026-5096 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-5096?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.