CVE-2026-28098: Save Life Theme PHP File Inclusion Flaw

CVE-2026-28098 Overview

CVE-2026-28098 is a PHP Local File Inclusion (LFI) vulnerability affecting the ThemeREX Save Life WordPress theme. The vulnerability stems from improper control of filename parameters used in PHP include/require statements, classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). This flaw enables attackers to include arbitrary local files from the server, potentially leading to sensitive information disclosure, configuration file exposure, or in some scenarios, remote code execution through log poisoning or other chained attacks.

Critical Impact

Unauthenticated attackers can exploit this LFI vulnerability to read sensitive server files, potentially exposing database credentials, configuration data, and WordPress secrets that could lead to full site compromise.

Affected Products

• ThemeREX Save Life WordPress Theme version 1.2.13 and earlier
• WordPress installations running the vulnerable Save Life theme
• Websites using Save Life theme with default configurations

Discovery Timeline

• 2026-03-05 - CVE CVE-2026-28098 published to NVD
• 2026-03-05 - Last updated in NVD database

Technical Details for CVE-2026-28098

Vulnerability Analysis

This Local File Inclusion vulnerability exists due to insufficient validation and sanitization of user-controlled input that is passed to PHP's file inclusion functions (include, require, include_once, or require_once). The Save Life theme fails to properly validate file path parameters before using them in include statements, allowing attackers to manipulate the file path to access files outside the intended directory scope.

The vulnerability is exploitable over the network without requiring authentication or user interaction, though successful exploitation depends on specific server configurations and file permissions. The attack can result in complete confidentiality and integrity compromise of the affected WordPress installation, along with potential availability impact if critical files are accessed or modified through chained attacks.

Root Cause

The root cause is improper input validation in the ThemeREX Save Life theme's PHP code. When the theme processes user-supplied input for dynamic file inclusion, it fails to implement proper path canonicalization, whitelist validation, or directory traversal prevention. This allows attackers to use path traversal sequences (such as ../) or absolute paths to reference files outside the intended include directory.

The CWE-98 classification indicates that the vulnerability specifically involves PHP's include/require mechanism being fed attacker-controlled filenames without adequate sanitization, a common security anti-pattern in PHP applications.

Attack Vector

The attack is network-accessible and can be conducted by unauthenticated remote attackers. The exploitation involves sending specially crafted HTTP requests to the vulnerable WordPress installation, manipulating parameters that are subsequently used in file inclusion operations.

Typical attack scenarios include:

1. Configuration File Disclosure: Reading wp-config.php to obtain database credentials and authentication keys
2. System File Access: Accessing /etc/passwd or other system files to enumerate users and gather reconnaissance data
3. Log File Inclusion: In certain configurations, including log files that contain attacker-injected PHP code, leading to remote code execution
4. PHP Session File Inclusion: Accessing session files to hijack user sessions or inject malicious code

The vulnerability can be exploited by crafting requests that traverse the directory structure using sequences like ../../../../ to escape the web root and access sensitive files. For detailed technical information about this vulnerability, refer to the Patchstack vulnerability database entry.

Detection Methods for CVE-2026-28098

Indicators of Compromise

• Unusual HTTP requests containing path traversal sequences (../, ..%2f, ....//) in URL parameters or POST data targeting the Save Life theme
• Access log entries showing attempts to read sensitive files like wp-config.php, /etc/passwd, or log files through theme endpoints
• Web server error logs indicating failed file inclusion attempts or PHP warnings about file access
• Unexpected file access patterns in web application firewall (WAF) logs

Detection Strategies

• Deploy web application firewall (WAF) rules to detect and block path traversal patterns in requests to WordPress theme directories
• Implement file integrity monitoring on critical WordPress files including wp-config.php and theme files
• Configure intrusion detection systems (IDS) to alert on LFI attack signatures targeting PHP applications
• Review web server access logs for requests containing suspicious file paths or directory traversal sequences

Monitoring Recommendations

• Enable detailed logging for PHP include/require operations on production servers
• Set up real-time alerting for any access attempts to wp-config.php or system files through web requests
• Monitor for unusual patterns of file read operations from the web server process
• Implement application-level logging to track file inclusion requests within the Save Life theme

How to Mitigate CVE-2026-28098

Immediate Actions Required

• Disable or remove the ThemeREX Save Life theme immediately if version 1.2.13 or earlier is installed
• Implement a web application firewall with LFI/path traversal protection rules
• Review web server access logs for signs of exploitation attempts
• Rotate all WordPress secrets and database credentials if compromise is suspected

Patch Information

As of the published date, organizations should check for updates from ThemeREX for a patched version of the Save Life theme. Monitor the Patchstack vulnerability advisory for patch availability and updated version information. If no patch is available, consider replacing the theme with a secure alternative.

Workarounds

• Implement WAF rules to block requests containing path traversal sequences targeting the Save Life theme
• Use PHP's open_basedir directive to restrict file access to the WordPress installation directory
• Disable the vulnerable theme and switch to a secure alternative theme until a patch is released
• Restrict file system permissions to prevent the web server from reading sensitive configuration files outside the web root

# Configuration example - Apache mod_rewrite rules to block path traversal
# Add to .htaccess in WordPress root directory
RewriteEngine On
RewriteCond %{QUERY_STRING} (\.\./|\.\.\\) [NC,OR]
RewriteCond %{QUERY_STRING} (\.\.%2f|\.\.%5c) [NC]
RewriteRule .* - [F,L]

# PHP open_basedir restriction in php.ini or .user.ini
# open_basedir = /var/www/html/wordpress/:/tmp/