CVE-2026-5096
Deferred Deferred - Pending Action

Server-Side Request Forgery in Everest Forms WordPress Plugin

Publication date: 2026-08-28

Last updated on: 2026-08-28

Assigner: Wordfence

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.

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Meta Information

Published
2026-08-28
Last Modified
2026-08-28
Generated
2026-08-29
AI Q&A
2026-08-28
EPSS Evaluated
N/A
NVD
CVE-2026-5096
EUVD
EUVD-2026-67710

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
wpforms everest_forms to 3.4.4 (inc)
everest_forms everest_forms to 3.4.4 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-918 The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

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Executive Summary

This is a Server-Side Request Forgery (SSRF) vulnerability in the Everest Forms WordPress plugin up to version 3.4.4. It allows unauthenticated attackers to trick the server into making outbound HTTP requests to arbitrary URLs by submitting a form with a malicious URL in an upload field while leaving a required field empty.

Detection Guidance

This vulnerability can be detected by checking if the Everest Forms plugin version is up to 3.4.4 or older. Inspect WordPress installations for the plugin and verify versions. No specific commands are provided in the context.

Impact Analysis

An attacker could exploit this to force your WordPress server to interact with internal or external systems, potentially leading to data leaks, unauthorized access to internal resources, or denial of service by overloading the server with requests.

Compliance Impact

This vulnerability could lead to unauthorized data exposure or access, violating GDPR's data protection principles or HIPAA's security requirements for protected health information. Organizations may face compliance violations and penalties if exploited.

Mitigation Strategies

Immediately update the Everest Forms plugin to the latest version beyond 3.4.4. If updating is not possible, consider disabling the plugin until a patch is applied. Review server logs for unusual outbound HTTP HEAD requests.

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