CVE-2025-1128

Everest Forms <= 3.0.9.4 - Unauthenticated Arbitrary File Upload, Read, and Deletion

2025-02-17 00:00
Arkadiusz Hydzik

Strategic Overview

Status
Patched in 3.0.9.5
Affected Plugin
Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI
Affected Version
<= 3.0.9.4
CVSS
9.8Critical
Weakness type
CWE-434 · Unrestricted Upload of File with Dangerous Type
CVE
CVE-2025-1128
View all Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI vulnerabilities

At a glance

CVE-2025-1128 is a critical-severity Unrestricted Upload of File with Dangerous Type vulnerability in the Everest Forms WordPress plugin, affecting versions <= 3.0.9.4. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 3.0.9.5; sites on affected versions should update now. Disclosed February 2025, reported by Arkadiusz Hydzik.

Vulnerability Overview

The Everest Forms – Contact Forms, Quiz, Survey, Newsletter & Payment Form Builder for WordPress plugin for WordPress is vulnerable to arbitrary file upload, read, and deletion due to missing file type and path validation in the 'format' method of the EVF_Form_Fields_Upload class in all versions up to, and including, 3.0.9.4. This makes it possible for unauthenticated attackers to upload, read, and delete arbitrary files on the affected site's server which may make remote code execution, sensitive information disclosure, or a site takeover possible.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-434: Unrestricted Upload of File with Dangerous Type

Everest Forms <= 3.0.9.4 carries this weakness at format, and reaching it takes no account at all. An unrestricted file upload lets a caller store a file whose type or destination the application does not properly constrain.

If an uploaded file lands anywhere the server will execute, the flaw becomes remote code execution and the site should be treated as fully compromised. For Everest Forms the fix is 3.0.9.5: builds <= 3.0.9.4 are affected, anything from 3.0.9.5 onward is not.

Remediation

Update to version 3.0.9.5, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: Everest Forms 3.0.9.5 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Scanner
  • Login Security

External References

https://www.cve.org/CVERecord?id=CVE-2025-1128https://www.wordfence.com/threat-intel/vulnerabilities/id/8c04d8c9-acad-4832-aa8a-8372c58a0387https://nvd.nist.gov/vuln/detail/CVE-2025-1128

Related records

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