CVE-2026-5096
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.
Published:Aug 28, 2026
Last Modified:Sep 1, 2026
EPS:Aug 28, 2026
EPSS Score:0.003
CVSS Score:5.3
Affected Products
Vendor
Product
Action
Vendor
Wordpress
Product
Wordpress
Wordpress
Wordpress
Vendor
Wpeverest
Product
Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder
Wpeverest
Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
