Mitigation Strategies

Since no official patch is currently available for the ConFix theme, immediate mitigation involves applying the Patchstack mitigation rule designed to block attacks targeting this vulnerability.

It is recommended to implement web application firewall (WAF) rules or other security controls that can block or filter malicious requests attempting to exploit the Local File Inclusion vulnerability.

Additionally, monitoring and restricting file inclusion parameters and limiting file access permissions on the server can help reduce the risk.

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Executive Summary

CVE-2026-27990 is a Local File Inclusion (LFI) vulnerability found in the WordPress ConFix Theme versions up to and including 1.013. It allows an unauthenticated attacker to include and display local files from the target website by exploiting improper control of filename parameters in PHP include/require statements.

This means an attacker can access sensitive files on the server, such as configuration files or database credentials, which should normally be protected.

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Impact Analysis

[{'type': 'paragraph', 'content': "Exploitation of this vulnerability can lead to exposure of sensitive information like database credentials. Depending on the website's configuration, it could result in a complete database takeover."}, {'type': 'paragraph', 'content': 'Because the vulnerability requires no privileges to exploit, any unauthenticated attacker can potentially compromise the affected website.'}, {'type': 'paragraph', 'content': 'The vulnerability is considered high severity with a CVSS score of 8.1, indicating significant risk to affected systems.'}] [1]

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Compliance Impact

I don't know

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Detection Guidance

[{'type': 'paragraph', 'content': 'CVE-2026-27990 is a Local File Inclusion vulnerability in the WordPress ConFix Theme up to version 1.013 that allows an attacker to include and display local files. Detection typically involves monitoring for suspicious HTTP requests attempting to exploit the LFI, such as requests containing file path parameters that include sensitive files.'}, {'type': 'paragraph', 'content': "While no specific commands are provided in the resources, common detection methods include inspecting web server logs for unusual URL patterns or parameters that attempt to include local files, for example, requests with parameters like 'include=', 'file=', or similar."}, {'type': 'paragraph', 'content': 'Network intrusion detection systems (NIDS) or web application firewalls (WAF) can be configured to detect and alert on such suspicious requests.'}] [1]

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