CVE-2026-23978: Gyan Elements File Inclusion Vulnerability

CVE-2026-23978 Overview

CVE-2026-23978 is an Improper Control of Filename for Include/Require Statement vulnerability in the Gyan Elements WordPress plugin developed by Softwebmedia. This Local File Inclusion (LFI) vulnerability allows attackers to include local files on the server through manipulation of PHP include/require statements, potentially leading to sensitive information disclosure, arbitrary code execution, or complete server compromise.

Critical Impact

This LFI vulnerability could allow attackers to read sensitive configuration files, access WordPress credentials, or escalate to remote code execution through log poisoning or PHP filter chains.

Affected Products

• Gyan Elements WordPress Plugin versions through 2.2.1
• WordPress installations running vulnerable versions of the gyan-elements plugin
• Websites using Softwebmedia Gyan Elements for Elementor page builder functionality

Discovery Timeline

• 2026-01-22 - CVE-2026-23978 published to NVD
• 2026-01-22 - Last updated in NVD database

Technical Details for CVE-2026-23978

Vulnerability Analysis

This vulnerability falls under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). The Gyan Elements plugin 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 attackers to manipulate the file path parameter to include arbitrary local files from the server filesystem.

Local File Inclusion vulnerabilities in WordPress plugins are particularly dangerous because they can be leveraged to read sensitive files like wp-config.php (containing database credentials), access server configuration files such as /etc/passwd, or potentially achieve remote code execution through techniques like log poisoning or PHP filter chains.

Root Cause

The root cause of this vulnerability is insufficient input validation and sanitization of user-controlled parameters that are subsequently used in PHP file inclusion statements. The plugin does not adequately verify that the requested file path falls within expected boundaries, allowing path traversal sequences (such as ../) to escape the intended directory and access arbitrary files on the system.

Attack Vector

The attack vector for this vulnerability involves sending crafted requests to the vulnerable WordPress plugin endpoint with manipulated file path parameters. An attacker can exploit this vulnerability by:

1. Identifying the vulnerable plugin endpoint that accepts file path parameters
2. Crafting a malicious request with path traversal sequences to escape the intended directory
3. Including sensitive local files such as WordPress configuration files or system files
4. Potentially escalating to code execution through log file poisoning or PHP wrapper exploitation

The vulnerability mechanism involves improper sanitization of file path input before it reaches PHP include/require functions. For detailed technical analysis, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2026-23978

Indicators of Compromise

• Web server access logs showing requests with path traversal sequences (../) targeting Gyan Elements plugin endpoints
• Requests attempting to access sensitive files like wp-config.php, /etc/passwd, or log files through plugin parameters
• Unusual file access patterns in PHP application logs indicating attempted file inclusion attacks
• Error logs containing PHP warnings about failed file inclusions with unexpected file paths

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block path traversal patterns in HTTP requests
• Deploy file integrity monitoring on sensitive configuration files to detect unauthorized access
• Monitor WordPress plugin activity logs for suspicious file access attempts
• Configure intrusion detection systems to alert on LFI attack signatures targeting WordPress plugins

Monitoring Recommendations

• Enable detailed access logging on your web server to capture all requests to WordPress plugin endpoints
• Implement real-time alerting for requests containing common LFI patterns such as ../, ..%2f, or PHP wrapper prefixes
• Monitor for unusual outbound data transfers that may indicate successful exfiltration of sensitive files
• Regularly audit plugin directories and WordPress core files for unexpected modifications

How to Mitigate CVE-2026-23978

Immediate Actions Required

• Update the Gyan Elements plugin to a patched version immediately if one is available from Softwebmedia
• If no patch is available, disable and remove the gyan-elements plugin until a security update is released
• Implement WAF rules to block path traversal attempts targeting WordPress plugin endpoints
• Review web server logs for evidence of exploitation attempts and investigate any suspicious activity

Patch Information

Organizations using the Gyan Elements WordPress plugin should check for updates through the WordPress plugin repository or the Softwebmedia website. The vulnerability affects all versions from n/a through 2.2.1. For the latest security information and patch availability, consult the Patchstack Vulnerability Report.

Workarounds

• Disable the Gyan Elements plugin temporarily until a patched version is available
• Implement server-level restrictions using .htaccess or nginx configuration to block path traversal patterns
• Use a WordPress security plugin to add additional input validation and request filtering
• Restrict PHP open_basedir to limit file inclusion to specific directories

# Apache .htaccess configuration to block common LFI patterns
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{QUERY_STRING} (\.\./|\.\.%2f) [NC,OR]
    RewriteCond %{QUERY_STRING} (php://|file://|data://) [NC]
    RewriteRule .* - [F,L]
</IfModule>