---
id: "CVE-2026-115483"
page: "https://infrastack.ai/live/CVE-2026-115483"
kind: "vulnerability"
aliases: ["CVE-2026-115483"]
title: "Everest Forms WordPress plugin: unauthenticated arbitrary file read via email attachments"
severity: "high"
cvss: 7.5
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "everest-forms", "fixed": [], "affected": "<= 3.6.3", "ecosystem": "wordpress"}]
ecosystems: []
tags: ["everest-forms", "package", "php", "plugin", "pro-addon", "wordpress"]
not_affected_if: ["no-attach-files-setting", "no-pro-addon", "plugin-not-installed"]
published_at: "2026-11-10T20:18:03+00:00"
first_seen_at: "2026-11-10T20:46:01+00:00"
updated_at: "2026-11-10T21:04:50+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115483", "first_seen_at": "2026-11-10T20:46:01+00:00"}, {"source": "analyst", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/everest-forms/everest-forms-363-unauthenticated-arbitrary-file-read-via-signature-field-meta-key-branch-of-attach-entry-files", "first_seen_at": "2026-11-10T21:04:50+00:00", "cites": ["https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/everest-forms/everest-forms-363-unauthenticated-arbitrary-file-read-via-signature-field-meta-key-branch-of-attach-entry-files"]}]
exploit_sources: []
---

# Everest Forms WordPress plugin: unauthenticated arbitrary file read via email attachments

Link for people: https://infrastack.ai/live/CVE-2026-115483 (this .md is for agents)

Everest Forms through 3.6.3 attaches any entry value under a signature_ meta key to notification emails after only a file_exists check, so an unauthenticated visitor can have files like wp-config.php emailed to an address they control. Wordfence lists it as unpatched; the Pro add-on and an Attach Files notification are required.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- wordpress:everest-forms affected <= 3.6.3 fixed no fixed version listed

## How to check

Run wp plugin list and check everest-forms (<= 3.6.3 is affected) and that the Everest Forms Pro add-on is active. Then check each form's email notification for 'Attach Files' enabled plus a field whose meta key matches signature_.

## Fix

No patched release listed by Wordfence as of 2026-11-10; check the wordpress.org changelog for a release above 3.6.3. Until then, turn off 'Attach Files' on form notifications that use a signature field, or deactivate the Pro add-on's file-email-attachments feature.

## Timeline

- 2026-11-10T20:46:01+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-115483
- 2026-11-10T21:04:50+00:00 analyst https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/everest-forms/everest-forms-363-unauthenticated-arbitrary-file-read-via-signature-field-meta-key-branch-of-attach-entry-files — Wordfence lists Everest Forms <=3.6.3 as Unpatched as of 2026-11-10; wordpress.org changelog not read for a fix. No exploitation or PoC seen. Not verified (third-party advisory).

## Documents

- [advisory] Wordfence: Everest Forms <= 3.6.3 Unauthenticated Arbitrary File Read (Unpatched) https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/everest-forms/everest-forms-363-unauthenticated-arbitrary-file-read-via-signature-field-meta-key-branch-of-attach-entry-files

## From the sources

The Everest Forms plugin for WordPress is vulnerable to Arbitrary File Read in all versions up to, and including, 3.6.3 via the attach_entry_files() function. This is due to the function attaching any entry field value whose meta key matches /signature_/ to the notification email after only a file_exists() check, without validating or restricting the path. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, such as wp-config.php, which can contain sensitive information. Successful exploitation requires a form whose email notification has the “Attach Files” setting enabled and that contains a field with a meta key matching /signature_/ (for example, a text field labelled “Signature”), with the notification routed to an attacker-supplied email address so the exfiltrated file is delivered to the attacker. Note: The Everest Forms Pro add-on is required to exploit this vulnerability, as it provides the signature field and the email file-attachment functionality (file-email-attachments) that the attack relies on.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_