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Everest Forms <= 3.6.3 — Unauthenticated Arbitrary File Read via 'Signature' Field Meta Key Branch of attach_entry_files

CVE-2026-115483Published · Updated

Action summary

Affected: ≤3.6.3No patch available

What to do until a fix ships
Watch plugin
Severity
High7.5
CVSS
7.5
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:N Integrity
None
A:N Availability
None
Weakness
CWE-22 Path Traversal
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI everest-forms

  1. Affected≤ 3.6.3
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 3.6.3. No fixed version has been released.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Maciej Komorowski.

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.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI

All 31
More vulnerabilities in Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI
SeverityVulnerabilityCVEPublished
High8.2Unauthenticated Arbitrary File Deletion via 'everest_forms_{form_id}_old_{field_id}' Parameter
≤3.6.2Update to 3.6.3
CVE-2026-120513
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤3.6.3Update to 3.6.4
CVE-2026-122669
Medium4.3Missing Authorization
≤3.6.3Update to 3.6.4
CVE-2026-120837
Medium6.5Insecure Direct Object Reference to Authenticated (Custom+) Arbitrary Entry/Form Disclosure and Deletion via MCP /tools/call JSON-RPC Endpoint
≤3.6.2Update to 3.6.3
CVE-2026-89101
Medium6.1Reflected Cross-Site Scripting via 'evf_toast_type' Parameter
≤3.6.2Update to 3.6.3
CVE-2026-91152

Same weakness (Path Traversal)

All Path Traversal
Other Path Traversal vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity high, CVSS 7.5

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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