CVE-2026-22456: Askka Theme Path Traversal Vulnerability

CVE-2026-22456 Overview

CVE-2026-22456 is a PHP Local File Inclusion (LFI) vulnerability in the Elated-Themes Askka WordPress theme. The vulnerability arises from improper control of filename for include/require statements in PHP, classified under CWE-98. This flaw allows attackers to include arbitrary local files from the server, potentially leading to sensitive information disclosure, code execution, or full system compromise.

Critical Impact

Attackers can exploit this LFI vulnerability to read sensitive server files, access configuration data, or potentially achieve remote code execution through log poisoning or other LFI-to-RCE techniques.

Affected Products

• Elated-Themes Askka WordPress Theme version 1.0 and earlier
• WordPress installations running vulnerable Askka theme versions

Discovery Timeline

• 2026-03-05 - CVE-2026-22456 published to NVD
• 2026-03-05 - Last updated in NVD database

Technical Details for CVE-2026-22456

Vulnerability Analysis

This vulnerability is classified as CWE-98: Improper Control of Filename for Include/Require Statement in PHP Program. The Askka WordPress theme fails to properly sanitize user-supplied input before using it in PHP file inclusion functions such as include(), include_once(), require(), or require_once(). This allows an attacker to manipulate file paths and include arbitrary files from the local filesystem.

Local File Inclusion vulnerabilities in WordPress themes are particularly dangerous because they can expose sensitive configuration files like wp-config.php which contains database credentials, authentication keys, and other critical settings. Additionally, attackers may leverage this vulnerability to read /etc/passwd, access log files, or include files that contain user-controlled content to achieve code execution.

Root Cause

The root cause is insufficient input validation and sanitization of user-controlled parameters before they are passed to PHP file inclusion functions. The Askka theme does not implement proper path traversal prevention or allowlist-based file inclusion validation, allowing attackers to use directory traversal sequences (../) to escape intended directories and access arbitrary files.

Attack Vector

An attacker can craft malicious requests containing path traversal sequences to manipulate the file inclusion path. By injecting sequences like ../../../ followed by target file paths, the attacker can navigate the directory structure and include sensitive files outside the intended scope.

The exploitation typically occurs through HTTP parameters that are processed by theme template files without adequate sanitization. Successful exploitation requires network access to the vulnerable WordPress installation but does not necessarily require authentication, depending on which theme component contains the vulnerability.

Potential attack scenarios include:

1. Reading WordPress configuration files to obtain database credentials
2. Accessing system files such as /etc/passwd for user enumeration
3. Including PHP session files or log files containing injected code
4. Chaining with other vulnerabilities for privilege escalation

Detection Methods for CVE-2026-22456

Indicators of Compromise

• Unusual HTTP requests containing path traversal sequences (../) targeting the Askka theme directory
• Access log entries showing attempts to access sensitive files through theme endpoints
• Requests containing null byte injection (%00) or encoding variations of path traversal characters
• Error logs indicating file inclusion failures from paths outside the theme directory

Detection Strategies

• Monitor web server access logs for requests containing path traversal patterns targeting /wp-content/themes/askka/
• Implement Web Application Firewall (WAF) rules to detect and block LFI attack patterns
• Use file integrity monitoring on sensitive system and WordPress configuration files
• Deploy runtime application security protection to detect anomalous file access patterns

Monitoring Recommendations

• Enable verbose logging for PHP file operations on WordPress installations
• Configure alerts for access attempts to sensitive files like wp-config.php through non-standard paths
• Monitor for unusual file read operations originating from web server processes
• Review theme activity logs for suspicious parameter values in requests

How to Mitigate CVE-2026-22456

Immediate Actions Required

• Deactivate and remove the Askka theme if a patched version is not available
• Implement Web Application Firewall rules to block path traversal attempts
• Restrict file system permissions to limit readable files from the web server context
• Consider switching to an alternative WordPress theme until a security patch is released

Patch Information

As of the published date, the vulnerability affects Askka theme version 1.0 and earlier. Administrators should check the Patchstack WordPress Theme Advisory for the latest information on available patches from Elated-Themes. Update to the latest patched version as soon as it becomes available.

Workarounds

• Disable the Askka theme and switch to a secure alternative theme until patched
• Implement strict WAF rules to filter requests containing path traversal sequences
• Use PHP open_basedir directive to restrict file access to WordPress directories only
• Apply the principle of least privilege to web server file system permissions

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

# PHP open_basedir restriction in php.ini or .htaccess
# Restricts PHP file operations to specified directories
php_value open_basedir /var/www/html/wordpress/:/tmp/