CVE-2025-49302: Easy Stripe Code Injection Vulnerability

CVE-2025-49302 Overview

CVE-2025-49302 is a critical code injection vulnerability affecting the Easy Stripe WordPress plugin developed by Scott Paterson. This vulnerability allows unauthenticated attackers to perform Remote Code Inclusion (RCI), potentially leading to complete site compromise. The flaw stems from improper control of code generation (CWE-94), enabling malicious actors to execute arbitrary code on vulnerable WordPress installations.

Critical Impact

This vulnerability enables unauthenticated remote code execution on WordPress sites running the Easy Stripe plugin version 1.1 or earlier, potentially allowing complete server compromise, data theft, and malware deployment.

Affected Products

• Easy Stripe WordPress Plugin versions up to and including 1.1
• WordPress installations with the Easy Stripe plugin activated
• All web servers hosting vulnerable WordPress configurations

Discovery Timeline

• 2025-07-04 - CVE CVE-2025-49302 published to NVD
• 2025-07-08 - Last updated in NVD database

Technical Details for CVE-2025-49302

Vulnerability Analysis

This vulnerability falls under CWE-94 (Improper Control of Generation of Code), commonly known as Code Injection. The Easy Stripe plugin fails to properly sanitize or validate user-controlled input before incorporating it into dynamically generated code. This architectural flaw allows attackers to inject malicious code that gets executed within the context of the WordPress application.

The vulnerability is particularly dangerous because it can be exploited remotely over the network without requiring any authentication or user interaction. The scope of impact extends beyond the vulnerable component itself, potentially affecting the entire underlying web server and database infrastructure.

Root Cause

The root cause of CVE-2025-49302 lies in the plugin's failure to implement proper input validation and output encoding when handling user-supplied data. The Easy Stripe plugin does not adequately sanitize inputs before they are processed in code generation routines, creating an injection point that attackers can leverage to introduce malicious payloads.

This type of vulnerability typically occurs when:

• User input is directly concatenated into executable code
• Insufficient validation allows special characters or code constructs to pass through
• The application lacks proper separation between code and data

Attack Vector

The attack vector for this vulnerability is network-based, meaning attackers can exploit it remotely without requiring local access to the target system. The exploitation process involves:

1. Reconnaissance: Identifying WordPress sites running vulnerable versions of the Easy Stripe plugin
2. Payload Crafting: Creating a malicious request containing injected code
3. Request Submission: Sending the crafted payload to the vulnerable endpoint
4. Code Execution: The injected code executes within the WordPress/PHP context
5. Post-Exploitation: Attackers can establish persistence, exfiltrate data, or deploy additional malware

The vulnerability does not require any privileges or user interaction, making it highly exploitable. Successful exploitation could result in complete compromise of confidentiality, integrity, and availability of the affected WordPress installation and potentially the underlying server.

For detailed technical information about the exploitation mechanism, refer to the Patchstack WordPress Vulnerability Advisory.

Detection Methods for CVE-2025-49302

Indicators of Compromise

• Unexpected PHP files or modified plugin files within the wp-content/plugins/easy-stripe/ directory
• Suspicious outbound network connections originating from the web server
• Anomalous entries in WordPress or web server access logs showing unusual requests to Easy Stripe plugin endpoints
• New unauthorized admin accounts or modified user privileges in WordPress

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block code injection attempts targeting WordPress plugins
• Monitor file integrity for changes to Easy Stripe plugin files and core WordPress files
• Deploy runtime application self-protection (RASP) solutions to detect code injection at execution time
• Review access logs for patterns consistent with automated vulnerability scanning or exploitation attempts

Monitoring Recommendations

• Enable detailed logging for all requests to WordPress plugin endpoints
• Set up alerts for file modifications within the wp-content/plugins/ directory
• Monitor for unusual process spawning or system calls originating from the web server process
• Track outbound connections from the WordPress server for potential command-and-control communication

How to Mitigate CVE-2025-49302

Immediate Actions Required

• Deactivate and remove the Easy Stripe plugin immediately if running version 1.1 or earlier
• Audit WordPress installations for signs of compromise before and after remediation
• Review and remove any unauthorized user accounts or suspicious files added to the WordPress installation
• Consider restoring from a known-clean backup if compromise is suspected

Patch Information

As of the last NVD update on 2025-07-08, organizations should check the Patchstack WordPress Vulnerability Advisory for the latest patch status and remediation guidance. Contact the plugin developer Scott Paterson for updated versions that address this vulnerability.

Workarounds

• Disable the Easy Stripe plugin entirely until a patched version is available
• Implement WAF rules to block suspicious requests containing code injection patterns to the plugin endpoints
• Restrict access to WordPress admin areas and plugin directories via .htaccess or server configuration
• Use a security plugin to add additional input validation layers for plugin requests

# Example: Disable Easy Stripe plugin via WP-CLI
wp plugin deactivate easy-stripe --path=/var/www/html/wordpress

# Example: Block access to the plugin directory via .htaccess
echo "<Directory /var/www/html/wordpress/wp-content/plugins/easy-stripe>
    Order deny,allow
    Deny from all
</Directory>" >> /etc/apache2/sites-available/wordpress.conf

# Restart web server to apply changes
systemctl restart apache2