CVE-2025-14502: WordPress News & Blog Designer RCE Flaw

CVE-2025-14502 Overview

CVE-2025-14502 is a Local File Inclusion (LFI) vulnerability in the News and Blog Designer Bundle plugin for WordPress affecting all versions up to and including 1.1. The vulnerability exists in the template parameter, which fails to properly sanitize user input before including PHP files on the server. This allows unauthenticated attackers to include and execute arbitrary .php files, potentially leading to complete server compromise.

Critical Impact

Unauthenticated attackers can achieve remote code execution by including malicious PHP files, bypassing access controls, and obtaining sensitive data from vulnerable WordPress installations.

Affected Products

• News and Blog Designer Bundle plugin for WordPress versions ≤ 1.1
• WordPress installations with the vulnerable plugin installed and active

Discovery Timeline

• 2026-01-14 - CVE CVE-2025-14502 published to NVD
• 2026-01-14 - Last updated in NVD database

Technical Details for CVE-2025-14502

Vulnerability Analysis

This vulnerability falls under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). The flaw allows unauthenticated attackers to manipulate the template parameter to include arbitrary PHP files from the server's file system. Because PHP's include mechanism will execute any PHP code within the included file, attackers can leverage this to run malicious code in the context of the web application.

The attack is particularly dangerous because it requires no authentication, meaning any internet-facing WordPress site with this plugin is at risk. Attackers can chain this vulnerability with other techniques—such as uploading a malicious PHP file through an unrelated upload mechanism or exploiting log poisoning—to achieve full remote code execution on the target server.

Root Cause

The root cause of this vulnerability is insufficient input validation and sanitization of the template parameter in the plugin's AJAX handler (class-nbdb-ajax.php). The code directly uses user-supplied input to construct file paths for PHP includes without properly validating that the requested file is within an allowed directory or matches an expected whitelist of template files.

Attack Vector

The vulnerability is exploited over the network via HTTP requests to the WordPress AJAX endpoint. An attacker can craft a malicious request containing a path traversal sequence or a reference to a PHP file elsewhere on the server. Since the attack requires no authentication or user interaction, it can be automated and exploited at scale against vulnerable WordPress installations.

The attack flow typically involves:

1. Identifying a WordPress site with the vulnerable plugin installed
2. Sending a crafted AJAX request with a manipulated template parameter
3. Including a PHP file containing malicious code (either pre-existing on the server or uploaded through other means)
4. Achieving code execution with the privileges of the web server process

For detailed technical analysis of the vulnerable code path, refer to the WordPress Plugin Code Review and the Wordfence Vulnerability Report.

Detection Methods for CVE-2025-14502

Indicators of Compromise

• Unusual HTTP requests to WordPress AJAX endpoints containing path traversal sequences (../) in the template parameter
• Web server logs showing requests to admin-ajax.php with suspicious template parameter values
• Unexpected PHP files appearing in non-standard directories on the server
• Web shell activity or unauthorized code execution on WordPress installations

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block requests containing path traversal patterns in the template parameter
• Monitor WordPress AJAX endpoint access logs for anomalous patterns and high request volumes from single sources
• Deploy file integrity monitoring to detect unauthorized file modifications or new PHP files
• Use SentinelOne Singularity XDR to detect post-exploitation activities such as web shell deployment and lateral movement

Monitoring Recommendations

• Enable detailed logging on WordPress installations and forward logs to a centralized SIEM for analysis
• Configure alerts for any HTTP requests containing ../ sequences targeting WordPress AJAX endpoints
• Monitor for unusual process spawning from web server processes (e.g., www-data or apache spawning shells)
• Implement network monitoring to detect outbound connections from web servers to unexpected destinations

How to Mitigate CVE-2025-14502

Immediate Actions Required

• Update the News and Blog Designer Bundle plugin to a patched version if available
• If no patch is available, immediately deactivate and remove the vulnerable plugin from WordPress installations
• Audit WordPress installations to identify sites running the affected plugin versions
• Review web server logs for any evidence of exploitation attempts
• Conduct incident response if exploitation indicators are detected

Patch Information

Organizations should monitor the official WordPress plugin repository and the Wordfence Vulnerability Report for patch availability. Until a patch is released, the recommended action is to remove the vulnerable plugin entirely from production environments.

Workarounds

• Disable the News and Blog Designer Bundle plugin until an official patch is released
• Implement WAF rules to block requests containing path traversal sequences in the template parameter
• Restrict access to WordPress AJAX endpoints using IP allowlists where feasible
• Deploy virtual patching through a security plugin or reverse proxy to sanitize the template parameter

# Example WAF rule for ModSecurity to block path traversal attempts
SecRule ARGS:template "@contains ../" "id:1001,phase:2,deny,status:403,msg:'CVE-2025-14502 LFI Attempt Blocked'"