CVE-2026-25381: LoveDate PHP File Inclusion Vulnerability

CVE-2026-25381 Overview

CVE-2026-25381 is a PHP Local File Inclusion (LFI) vulnerability affecting the LoveDate WordPress theme by jwsthemes. This vulnerability stems from improper control of filename parameters in PHP include/require statements, allowing attackers to include arbitrary local files on the target server. When successfully exploited, this flaw can lead to sensitive data exposure, configuration file disclosure, and potentially remote code execution through log poisoning or other LFI-to-RCE techniques.

Critical Impact

Attackers can exploit this vulnerability to read sensitive server files including WordPress configuration files containing database credentials, potentially leading to full site compromise.

Affected Products

• LoveDate WordPress Theme versions prior to 3.8.6
• WordPress installations running vulnerable LoveDate theme versions

Discovery Timeline

• 2026-03-25 - CVE CVE-2026-25381 published to NVD
• 2026-03-26 - Last updated in NVD database

Technical Details for CVE-2026-25381

Vulnerability Analysis

This vulnerability is classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). The LoveDate WordPress theme fails to properly validate or sanitize user-supplied input before passing it to PHP include or require functions. This allows an attacker to manipulate file path parameters to traverse directories and include arbitrary local files from the server's filesystem.

The network-accessible nature of this vulnerability means any unauthenticated remote attacker can potentially exploit it, though some complexity exists in the exploitation path. Successful exploitation can result in confidentiality, integrity, and availability impacts to the affected WordPress installation.

Root Cause

The root cause of CVE-2026-25381 lies in insufficient input validation within the LoveDate theme's PHP code. When the application accepts user input to determine which file to include, it fails to implement proper path sanitization or whitelist validation. This allows malicious path traversal sequences (such as ../) to be processed, enabling attackers to escape the intended directory structure and access files elsewhere on the filesystem.

Attack Vector

The attack vector for this vulnerability is network-based, meaning exploitation can occur remotely through HTTP requests to the vulnerable WordPress site. An attacker would craft malicious requests containing path traversal sequences targeting the vulnerable include mechanism within the LoveDate theme.

Typical exploitation involves manipulating URL parameters or POST data to include sensitive files such as /etc/passwd, wp-config.php, or application log files. More advanced attacks may chain this LFI vulnerability with log poisoning techniques to achieve remote code execution by injecting PHP code into server logs and subsequently including those log files.

For detailed technical information about this vulnerability, refer to the Patchstack WordPress Vulnerability Database.

Detection Methods for CVE-2026-25381

Indicators of Compromise

• Unusual HTTP requests containing path traversal sequences (../, ..%2f, ..%252f) targeting theme-related endpoints
• Access logs showing requests attempting to include sensitive system files like /etc/passwd or wp-config.php
• Web application firewall alerts for LFI attack patterns targeting WordPress theme directories
• Unexpected file access patterns in server audit logs indicating directory traversal attempts

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block path traversal patterns in HTTP requests
• Monitor WordPress access logs for suspicious requests containing encoded directory traversal sequences
• Implement file integrity monitoring on WordPress core files and the wp-config.php configuration file
• Use WordPress security plugins that can detect exploitation attempts against known theme vulnerabilities

Monitoring Recommendations

• Enable detailed logging for PHP include/require operations on production WordPress servers
• Configure real-time alerting for any access attempts to sensitive configuration files
• Monitor for anomalous outbound connections that may indicate data exfiltration following successful exploitation
• Review server error logs for PHP warnings related to failed file inclusion attempts

How to Mitigate CVE-2026-25381

Immediate Actions Required

• Update the LoveDate WordPress theme to version 3.8.6 or later immediately
• Audit access logs for signs of prior exploitation attempts
• If the theme cannot be updated immediately, consider temporarily disabling the LoveDate theme
• Review and rotate any credentials that may have been exposed, including database passwords in wp-config.php

Patch Information

The vulnerability has been addressed in LoveDate theme version 3.8.6. Administrators should update to this version or later through the WordPress admin dashboard or by manually downloading the patched theme from the vendor. For more details, see the Patchstack security advisory.

Workarounds

• Implement strict input validation at the server or WAF level to block path traversal sequences
• Restrict PHP's open_basedir configuration to limit file access to the WordPress installation directory
• Deploy a Web Application Firewall with LFI protection rules enabled
• Disable direct access to theme PHP files where possible through .htaccess rules

# Example: Restrict PHP open_basedir in .htaccess or php.ini
# Add to .htaccess in WordPress root
php_value open_basedir "/var/www/html/wordpress:/tmp"

# Or block direct access to theme PHP files
<Directory "/var/www/html/wordpress/wp-content/themes/lovedate">
    <FilesMatch "\.php$">
        Require all denied
    </FilesMatch>
</Directory>