Executive Summary

CVE-2025-60237 is a high-severity PHP Object Injection vulnerability affecting the WordPress Finag Theme versions up to and including 1.5.0.

This vulnerability allows unauthenticated attackers to perform PHP Object Injection, which can lead to remote code execution, SQL injection, path traversal, denial of service, and other attacks if a suitable Property Oriented Programming (POP) chain is available.

It is classified under the OWASP Top 10 category A3: Injection.

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Impact Analysis

This vulnerability can have critical impacts including remote code execution, allowing attackers to run arbitrary code on the affected system.

It can also lead to SQL injection, path traversal, denial of service, and other severe attacks.

Because it requires no authentication and has a CVSS score of 9.8, it poses a high risk and is expected to be exploited in mass campaigns targeting many websites.

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Compliance Impact

I don't know

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Detection Guidance

[{'type': 'paragraph', 'content': 'This vulnerability involves PHP Object Injection in the Finag WordPress theme and can be detected by monitoring for exploitation attempts targeting this specific theme version.'}, {'type': 'paragraph', 'content': 'Patchstack has issued a mitigation rule to block exploitation attempts, which implies that using their automated vulnerability mitigation tools or security plugins can help detect and block attacks.'}, {'type': 'paragraph', 'content': 'Since no official patch exists, detection can involve scanning web server logs for suspicious requests that attempt to inject serialized PHP objects or unusual payloads targeting the Finag theme.'}, {'type': 'list_item', 'content': 'Use web server log analysis tools (e.g., grep) to search for suspicious serialized PHP object payloads in HTTP requests.'}, {'type': 'list_item', 'content': 'Deploy security plugins or WAFs (Web Application Firewalls) that include rules for detecting PHP Object Injection attempts.'}, {'type': 'list_item', 'content': "Example command to search Apache logs for suspicious serialized PHP objects: grep -i 'O:' /var/log/apache2/access.log"}, {'type': 'list_item', 'content': "Example command to monitor real-time logs for injection attempts: tail -f /var/log/apache2/access.log | grep --line-buffered 'O:'"}] [1]

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Mitigation Strategies

Immediate mitigation steps include applying Patchstack’s mitigation rules to block exploitation attempts until an official patch is released.

Since no official patch is available as of the publication date, updating the Finag theme to a non-vulnerable version when it becomes available is recommended.

Other recommended actions include deploying Web Application Firewalls (WAFs) or security plugins that can detect and block PHP Object Injection attacks.

• Apply Patchstack’s mitigation rules or security plugins that provide automated protection against this vulnerability.
• Monitor and restrict access to the affected WordPress theme files and ensure least privilege permissions.
• Regularly back up your website and database to enable recovery in case of compromise.

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