Executive Summary

CVE-2026-28057 is a Local File Inclusion (LFI) vulnerability found in the WordPress Mandala Theme versions up to and including 2.8. This vulnerability allows unauthenticated attackers to include and display local files from the target website by exploiting improper control of filename for include/require statements in PHP. Essentially, attackers can trick the application into loading files from the server that should not be accessible.

This issue is classified under the OWASP Top 10 category A3: Injection, specifically as a Local File Inclusion vulnerability.

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Impact Analysis

[{'type': 'paragraph', 'content': "Exploitation of this vulnerability can lead to exposure of sensitive files on the server, such as those containing database credentials. This exposure can potentially result in a complete database takeover depending on the website's configuration."}, {'type': 'paragraph', 'content': 'Because attackers do not need to be authenticated to exploit this vulnerability, it poses a high risk to affected sites.'}] [1]

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Compliance Impact

I don't know

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Detection Guidance

[{'type': 'paragraph', 'content': 'This vulnerability allows unauthenticated attackers to include and display local files from the target website, which can be detected by monitoring for suspicious HTTP requests attempting to exploit Local File Inclusion (LFI).'}, {'type': 'paragraph', 'content': 'Detection can involve checking web server logs for requests containing suspicious parameters that try to include local files, such as those with directory traversal patterns (e.g., "../") or attempts to access sensitive files like /etc/passwd or configuration files.'}, {'type': 'paragraph', 'content': 'While no specific commands are provided, common approaches include using tools like grep to search web server logs for suspicious patterns, for example:'}, {'type': 'list_item', 'content': "grep -i 'include' /var/log/apache2/access.log"}, {'type': 'list_item', 'content': "grep -E '\\.\\./|etc/passwd|config' /var/log/apache2/access.log"}, {'type': 'paragraph', 'content': 'Additionally, web application firewalls or intrusion detection systems can be configured to alert on such patterns.'}] [1]

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Mitigation Strategies

Since no official patch is available for this vulnerability as of the publication date, immediate mitigation involves applying the mitigation rule provided by Patchstack that blocks attack attempts targeting this Local File Inclusion vulnerability.

Users are strongly advised to implement this mitigation immediately to prevent exploitation.

Additional general mitigation steps include:

• Restricting file inclusion functions in PHP configurations if possible.
• Limiting web server permissions to prevent unauthorized file access.
• Monitoring logs for suspicious activity and blocking malicious IPs.

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