Unauthenticated PHP Object Injection in Eldon Theme by Patchstack
CVE-2026-40738

8.1HIGH

Key Information:

Vendor

WordPress
Status
Eldon
Vendor
CVE Published:
17 June 2026

What is CVE-2026-40738?

The Eldon Theme for WordPress versions up to 1.4.1 is susceptible to an unauthenticated PHP Object Injection vulnerability. This flaw allows attackers to exploit input data to manipulate PHP objects, potentially leading to remote code execution or exposure of sensitive information. As such, it is imperative for users to ensure their installations are updated to mitigate potential risks.

Affected Version(s)

Eldon <= 1.4.1

References

https://patchstack.com/database/wordpress/theme/eldon/vul...
vdb-entry

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Denver Jackson | Patchstack Bug Bounty Program
.