Executive Summary

CVE-2026-25031 is a critical PHP Object Injection vulnerability found in the WordPress Tasty Daily Theme versions prior to 1.27.

This vulnerability allows unauthenticated attackers to inject malicious PHP objects, which can lead to severe consequences such as remote code execution, SQL injection, path traversal, denial of service, and other attacks if a suitable Property Oriented Programming (POP) chain is available.

It falls under the OWASP Top 10 category A3: Injection and was patched in version 1.27 of the theme.

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Impact Analysis

This vulnerability can have severe impacts including allowing attackers to execute remote code on your server, perform SQL injection attacks, traverse paths to access unauthorized files, cause denial of service, and potentially other malicious actions.

Because the vulnerability can be exploited by unauthenticated attackers, it poses a high risk to websites using vulnerable versions of the Tasty Daily Theme, regardless of their traffic or popularity.

Exploitation could lead to complete compromise of the affected website and its underlying server.

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Mitigation Strategies

The immediate step to mitigate this vulnerability is to update the WordPress Tasty Daily Theme to version 1.27 or later, where the vulnerability has been patched.

For those unable to update immediately, applying the mitigation rule provided by Patchstack can block exploitation attempts until the patch can be applied.

Rapid vulnerability mitigation and continuous protection through security services like Patchstack are strongly recommended to prevent exploitation.

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Compliance Impact

The provided information does not specify how CVE-2026-25031 affects compliance with common standards and regulations such as GDPR or HIPAA.

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Detection Guidance

The CVE-2026-25031 vulnerability affects the WordPress Tasty Daily Theme versions prior to 1.27 and involves PHP Object Injection. Detection typically involves identifying if the vulnerable theme version is in use and monitoring for exploitation attempts.

To detect this vulnerability on your system, first verify the version of the Tasty Daily Theme installed on your WordPress site. You can do this by checking the theme version in the WordPress admin dashboard or by inspecting the theme's style.css file.

• Check the theme version via command line by navigating to the WordPress themes directory and running: grep 'Version:' wp-content/themes/tastydaily/style.css
• Look for suspicious HTTP requests that may indicate exploitation attempts, such as requests containing serialized PHP objects or unusual parameters targeting the theme.
• Use web server logs or intrusion detection systems to search for patterns related to PHP Object Injection attempts.

Patchstack provides mitigation rules that can block exploitation attempts until the theme is updated. Applying such rules can help detect and prevent attacks.

Since no specific detection commands are provided in the resources, the above general methods are recommended for identifying the vulnerability presence and exploitation attempts.

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