CVE-2025-31082: News & Blog Designer Pack LFI Vulnerability

CVE-2025-31082 Overview

CVE-2025-31082 is a Local File Inclusion (LFI) vulnerability affecting the InfornWeb News & Blog Designer Pack WordPress plugin through version 4.0. The vulnerability stems from improper control of filename parameters used in PHP include/require statements, allowing attackers to include arbitrary local files on the server. This can lead to sensitive information disclosure, configuration file exposure, and potentially remote code execution when combined with other techniques.

Critical Impact

Unauthenticated attackers can exploit this LFI vulnerability to read sensitive files from the WordPress installation, potentially exposing database credentials, API keys, and other confidential information stored on the server.

Affected Products

• InfornWeb News & Blog Designer Pack versions up to and including 4.0
• WordPress installations running the vulnerable plugin versions

Discovery Timeline

• 2025-04-01 - CVE-2025-31082 published to NVD
• 2025-04-02 - Last updated in NVD database

Technical Details for CVE-2025-31082

Vulnerability Analysis

This vulnerability falls under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). The News & Blog Designer Pack plugin fails to properly validate or sanitize user-supplied input before using it in PHP file inclusion operations. The network-accessible attack vector requires no authentication, though the exploitation complexity is considered high due to the specific conditions required for successful attacks.

The vulnerability allows attackers to manipulate file path parameters to include arbitrary local files from the web server's filesystem. When successfully exploited, attackers can read sensitive configuration files such as wp-config.php, which contains database credentials, authentication keys, and other security-critical information.

Root Cause

The root cause is insufficient input validation in the PHP code responsible for dynamically including files. The plugin accepts user-controlled input that is directly or indirectly passed to PHP's include(), include_once(), require(), or require_once() functions without adequate path sanitization or allowlist validation. This allows directory traversal sequences to escape the intended directory context and access files elsewhere on the filesystem.

Attack Vector

The attack is conducted remotely over the network without requiring authentication. Attackers craft malicious requests containing path traversal sequences (e.g., ../) or absolute file paths targeting sensitive files on the server. The vulnerability requires specific conditions to be met for successful exploitation, including appropriate file permissions and the ability to reach the vulnerable endpoint.

The exploitation typically involves manipulating request parameters to traverse directories and include files outside the intended scope. For technical details on the specific exploitation vectors, refer to the Patchstack WordPress Vulnerability Report.

Detection Methods for CVE-2025-31082

Indicators of Compromise

• Unusual HTTP requests containing path traversal sequences (../, ..%2f, ..%252f) targeting plugin endpoints
• Access attempts to sensitive files like wp-config.php, /etc/passwd, or similar system files through the plugin
• Error logs showing file inclusion failures or warnings from the Blog Designer Pack plugin
• Unexpected file access patterns in web server access logs referencing the plugin directory

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block path traversal patterns in requests
• Monitor web server logs for requests containing directory traversal sequences targeting the blog-designer-pack plugin endpoints
• Enable PHP error logging and monitor for include/require related warnings or errors
• Deploy file integrity monitoring on critical WordPress configuration files

Monitoring Recommendations

• Configure real-time alerting for path traversal attempt patterns in HTTP requests
• Implement endpoint monitoring for the News & Blog Designer Pack plugin directory
• Set up anomaly detection for unusual file access patterns on the WordPress server
• Review access logs regularly for reconnaissance or exploitation attempts targeting this vulnerability

How to Mitigate CVE-2025-31082

Immediate Actions Required

• Update the News & Blog Designer Pack plugin to a patched version beyond 4.0 immediately
• If updates are not available, deactivate and remove the plugin until a security patch is released
• Implement WAF rules to block path traversal attempts as a temporary mitigation
• Review server logs for signs of prior exploitation attempts
• Rotate credentials stored in wp-config.php if exploitation is suspected

Patch Information

Users should check for updates to the News & Blog Designer Pack plugin through the WordPress admin dashboard. For detailed patch information and remediation guidance, consult the Patchstack WordPress Vulnerability Report.

Workarounds

• Disable the News & Blog Designer Pack plugin until a patched version is available
• Implement server-level input validation to block requests containing path traversal sequences
• Configure open_basedir PHP directive to restrict file access to the WordPress directory
• Use a Web Application Firewall with LFI protection rules enabled

# Apache .htaccess rule to block common path traversal attempts
RewriteEngine On
RewriteCond %{QUERY_STRING} (\.\./|\.\.\\) [NC,OR]
RewriteCond %{QUERY_STRING} (\.\.%2f|\.\.%5c) [NC,OR]
RewriteCond %{QUERY_STRING} (\.\.%252f) [NC]
RewriteRule ^(.*)$ - [F,L]