CVE-2025-14545: YML for Yandex Market RCE Vulnerability

CVE-2025-14545 Overview

The YML for Yandex Market WordPress plugin before version 5.0.26 contains a Remote Code Execution (RCE) vulnerability in the feed generation process. This vulnerability allows attackers to execute arbitrary code on vulnerable WordPress installations through the plugin's feed generation functionality.

Critical Impact

Remote Code Execution allows attackers to gain complete control over affected WordPress sites, potentially compromising sensitive data, defacing websites, or using the server for further malicious activities.

Affected Products

• YML for Yandex Market WordPress plugin versions prior to 5.0.26

Discovery Timeline

• 2026-04-10 - CVE CVE-2025-14545 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-14545

Vulnerability Analysis

This vulnerability resides in the feed generation process of the YML for Yandex Market WordPress plugin. The plugin is designed to generate YML (Yandex Market Language) feeds for product listings on Yandex Market, a popular e-commerce platform. The vulnerability allows remote attackers to exploit flaws in how the plugin processes and generates these feeds, ultimately leading to arbitrary code execution on the server.

The network-based attack vector means exploitation can occur remotely without requiring user interaction, making this vulnerability particularly dangerous for publicly accessible WordPress installations using this plugin.

Root Cause

The root cause of this vulnerability stems from improper input validation and sanitization in the feed generation functionality. When processing data for YML feed creation, the plugin fails to properly validate or escape user-controllable input, allowing attackers to inject and execute malicious code through the feed generation process.

Attack Vector

The vulnerability can be exploited remotely over the network. An attacker can craft malicious requests targeting the feed generation functionality of the plugin. Since no authentication is required and the attack complexity is low, this makes the vulnerability accessible to a wide range of threat actors.

The feed generation process accepts input that is not properly sanitized before being processed, allowing injection of executable code. This could potentially be triggered through:

• Manipulated product data fields that are processed during feed generation
• Specially crafted requests to the feed generation endpoints
• Exploitation of unsafe deserialization or dynamic code evaluation in the feed processing logic

For detailed technical information about the exploitation mechanism, refer to the WPScan Vulnerability Report.

Detection Methods for CVE-2025-14545

Indicators of Compromise

• Unusual PHP files or modified files in the WordPress plugin directory, particularly within the YML for Yandex Market plugin folder
• Unexpected outbound network connections from the WordPress server
• New or modified cron jobs or scheduled tasks on the server
• Evidence of webshell activity or unauthorized administrative access

Detection Strategies

• Monitor web server access logs for suspicious requests targeting the YML for Yandex Market plugin endpoints, particularly feed generation URLs
• Implement file integrity monitoring on WordPress plugin directories to detect unauthorized modifications
• Deploy web application firewalls (WAF) with rules to detect code injection attempts in plugin parameters
• Review WordPress activity logs for unusual feed generation requests or plugin behavior

Monitoring Recommendations

• Enable verbose logging on WordPress and monitor for errors or warnings related to the YML for Yandex Market plugin
• Set up alerting for any new PHP file creation in the WordPress installation directory
• Monitor server resource usage for anomalies that could indicate cryptomining or other malicious activity following exploitation
• Implement network traffic analysis to detect command and control communications

How to Mitigate CVE-2025-14545

Immediate Actions Required

• Update the YML for Yandex Market plugin to version 5.0.26 or later immediately
• If immediate update is not possible, temporarily disable the YML for Yandex Market plugin until it can be updated
• Review WordPress installations for signs of compromise, including unauthorized users, modified files, or suspicious scheduled tasks
• Implement a web application firewall to filter malicious requests targeting the vulnerable plugin

Patch Information

The vulnerability has been addressed in YML for Yandex Market plugin version 5.0.26. WordPress administrators should update through the WordPress admin dashboard or by manually downloading the latest version from the WordPress plugin repository. For more details, see the WPScan Vulnerability Report.

Workarounds

• Disable the YML for Yandex Market plugin temporarily if updating is not immediately possible
• Restrict access to WordPress admin and plugin directories using .htaccess rules or web server configuration
• Implement IP whitelisting for administrative functions if the plugin must remain active
• Use a security plugin to add additional layers of protection against exploitation attempts

# Example .htaccess restriction for plugin directory
<Directory /var/www/html/wp-content/plugins/yml-for-yandex-market/>
    <Files "*.php">
        Order Deny,Allow
        Deny from all
        Allow from 127.0.0.1
    </Files>
</Directory>