CVE-2026-22511: NeoBeat Path Traversal Vulnerability

CVE-2026-22511 Overview

CVE-2026-22511 is a PHP Local File Inclusion (LFI) vulnerability affecting the NeoBeat WordPress theme developed by Elated-Themes. The vulnerability stems from improper control of filename for include/require statements in PHP, allowing attackers to include arbitrary local files on the server. This can lead to sensitive information disclosure, arbitrary code execution, and complete site compromise.

Critical Impact

Attackers can exploit this Local File Inclusion vulnerability to read sensitive configuration files, access database credentials, or achieve remote code execution through log poisoning techniques on WordPress sites running the vulnerable NeoBeat theme.

Affected Products

• NeoBeat WordPress Theme version 1.2 and earlier
• WordPress installations using NeoBeat theme from Elated-Themes
• All NeoBeat theme versions from initial release through version 1.2

Discovery Timeline

• 2026-03-25 - CVE-2026-22511 published to NVD
• 2026-03-26 - Last updated in NVD database

Technical Details for CVE-2026-22511

Vulnerability Analysis

This vulnerability is classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). The NeoBeat WordPress theme fails to properly sanitize user-supplied input before using it in PHP include or require statements. This allows an attacker to manipulate file paths and include arbitrary files from the local file system.

The network-accessible attack vector means exploitation can occur remotely without authentication. While the attack complexity is considered high, successful exploitation requires no privileges or user interaction, making it a significant risk for exposed WordPress installations.

Root Cause

The root cause of this vulnerability lies in insufficient input validation and sanitization within the NeoBeat theme's PHP code. When user-controlled data is passed to file inclusion functions (include(), require(), include_once(), or require_once()) without proper filtering, attackers can traverse directory structures and include unintended files. The theme fails to implement allowlisting, path canonicalization, or adequate filtering of path traversal sequences such as ../ before processing file inclusion requests.

Attack Vector

The vulnerability is exploitable over the network, allowing remote unauthenticated attackers to target vulnerable WordPress installations. The attack typically involves manipulating URL parameters or form inputs that are subsequently used in file inclusion operations.

Common exploitation techniques include:

• Path Traversal: Using sequences like ../../../etc/passwd to escape the intended directory and access system files
• Log File Poisoning: Injecting malicious PHP code into access logs, then including the log file to achieve code execution
• Configuration File Access: Reading wp-config.php to obtain database credentials and authentication keys
• PHP Filter Wrappers: Using php://filter to read PHP source code or bypass certain restrictions

The vulnerability allows attackers to read sensitive files containing database credentials, WordPress secret keys, and potentially escalate to full remote code execution through log poisoning or other PHP wrapper techniques.

Detection Methods for CVE-2026-22511

Indicators of Compromise

• Unusual HTTP requests containing path traversal sequences (../, ..%2f, ..%252f) targeting theme files
• Access log entries showing requests for sensitive files like /etc/passwd, wp-config.php, or log files
• Requests containing PHP wrapper protocols such as php://filter, php://input, or data://
• Unexpected file access patterns in WordPress theme directories

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block path traversal attempts in request parameters
• Monitor HTTP access logs for suspicious patterns including encoded traversal sequences and PHP wrapper usage
• Deploy file integrity monitoring to detect unauthorized access to sensitive configuration files
• Configure intrusion detection systems (IDS) with signatures for common LFI exploitation patterns

Monitoring Recommendations

• Enable detailed logging for WordPress file access operations and review logs regularly
• Set up alerts for requests containing path traversal patterns or PHP stream wrappers
• Monitor for unusual process spawning from web server processes that may indicate successful code execution
• Implement real-time log analysis to detect exploitation attempts against theme endpoints

How to Mitigate CVE-2026-22511

Immediate Actions Required

• Identify all WordPress installations using the NeoBeat theme version 1.2 or earlier
• Temporarily disable or switch to a different theme if no patch is available
• Implement WAF rules to block path traversal and LFI attack patterns
• Restrict file system permissions to limit the impact of potential exploitation
• Review access logs for evidence of prior exploitation attempts

Patch Information

Users should check for updates from Elated-Themes and apply any available security patches immediately. For detailed vulnerability information and patch status, refer to the Patchstack security advisory for NeoBeat theme.

If no patch is currently available, consider replacing the theme with a secure alternative until the vendor releases a fix.

Workarounds

• Deploy a Web Application Firewall with rules specifically blocking LFI and path traversal patterns
• Use WordPress security plugins that provide virtual patching capabilities for known vulnerabilities
• Implement open_basedir restrictions in PHP configuration to limit file access to the WordPress directory
• Configure the web server to deny access to sensitive files and directories
• Consider using PHP's disable_functions directive to restrict dangerous functions if code execution is a concern

# Apache .htaccess configuration to restrict file access
<FilesMatch "(wp-config\.php|\.htaccess|readme\.html|license\.txt)">
    Require all denied
</FilesMatch>

# Block common LFI patterns in Apache
RewriteEngine On
RewriteCond %{QUERY_STRING} (\.\./|\.\.%2f|\.\.%252f) [NC,OR]
RewriteCond %{QUERY_STRING} (php://|data://|expect://|zip://) [NC]
RewriteRule .* - [F,L]