Executive Summary

CVE-2026-40736 is an unauthenticated PHP Object Injection vulnerability found in the WordPress Laurits Theme versions 1.5.1 and below.

This flaw allows attackers to inject malicious PHP objects without needing any prior authentication, potentially enabling them to execute code injection, SQL injection, path traversal, denial of service, and other harmful activities if a suitable POP (Property Oriented Programming) chain exists.

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Impact Analysis

The vulnerability can have severe impacts including unauthorized code execution, database compromise through SQL injection, unauthorized file system access via path traversal, and service disruption through denial of service attacks.

Because it is unauthenticated and has a high CVSS score of 8.1, it poses a high risk and could be exploited in mass campaigns targeting thousands of websites using the vulnerable theme.

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Mitigation Strategies

Immediate action is advised to mitigate the PHP Object Injection vulnerability in Laurits Theme versions 1.5.1 and below.

• Update the Laurits theme to version 1.6 or later, which contains the patch for this vulnerability.
• Apply mitigation rules provided by Patchstack to block attacks targeting this vulnerability until the update can be applied.

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Compliance Impact

The provided information does not specify how the CVE-2026-40736 vulnerability impacts compliance with common standards and regulations such as GDPR or HIPAA.

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