Unauthenticated PHP Object Injection in Everest Forms Plugin by WordPress
CVE-2026-62103

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Everest Forms
Vendor
CVE Published:
11 September 2026

What is CVE-2026-62103?

The Everest Forms plugin for WordPress is susceptible to an unauthenticated PHP Object Injection vulnerability, affecting all versions up to 3.6.0. This flaw allows attackers to exploit the plugin’s handling of serialized objects, potentially leading to unauthorized code execution or arbitrary data manipulation. Users and developers are strongly advised to update to the latest version of Everest Forms to mitigate the risks associated with this vulnerability.

Affected Version(s)

Everest Forms <= 3.6.0

References

https://patchstack.com/database/wordpress/plugin/everest-...
vdb-entry

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

LueRader | Patchstack Bug Bounty Program
.