CVE-2025-48100: bidorbuy Store Integrator RCE Vulnerability

CVE-2025-48100 Overview

CVE-2025-48100 is a critical Code Injection vulnerability (CWE-94) affecting the bidorbuy Store Integrator WordPress plugin developed by extremeidea. This vulnerability enables Remote Code Inclusion, allowing attackers to execute arbitrary code on affected WordPress installations. The flaw exists in all versions of the plugin through version 2.12.0.

Critical Impact

Attackers can achieve Remote Code Execution (RCE) on vulnerable WordPress sites running the bidorbuy Store Integrator plugin, potentially leading to complete site compromise, data theft, and lateral movement within the hosting environment.

Affected Products

• bidorbuy Store Integrator WordPress plugin versions through 2.12.0
• WordPress installations with the bidorbuystoreintegrator plugin enabled

Discovery Timeline

• 2025-08-28 - CVE-2025-48100 published to NVD
• 2026-04-01 - Last updated in NVD database

Technical Details for CVE-2025-48100

Vulnerability Analysis

This vulnerability falls under CWE-94 (Improper Control of Generation of Code), commonly known as Code Injection. The bidorbuy Store Integrator plugin fails to properly validate and sanitize user-supplied input before incorporating it into dynamically generated code. This architectural flaw allows attackers to inject and execute arbitrary PHP code on the server hosting the vulnerable WordPress installation.

Remote Code Inclusion vulnerabilities of this nature typically arise when plugins accept external input that is subsequently evaluated or included as executable code. In the context of WordPress e-commerce integrations, such plugins often handle product data synchronization, API callbacks, or webhook processing—all potential vectors for code injection if input validation is insufficient.

Root Cause

The root cause of CVE-2025-48100 lies in improper input validation within the bidorbuy Store Integrator plugin. The plugin does not adequately sanitize or validate user-controlled data before using it in code generation or inclusion operations. This allows attackers to craft malicious payloads that are interpreted and executed as legitimate code by the PHP interpreter.

Attack Vector

The attack vector for this vulnerability involves remote exploitation through the WordPress plugin interface. An attacker can exploit this vulnerability by sending specially crafted requests to the vulnerable plugin endpoints. The malicious input is then processed by the plugin and included in dynamically generated or evaluated code, resulting in arbitrary code execution with the privileges of the web server process.

Successful exploitation could allow an attacker to:

• Execute arbitrary system commands on the underlying server
• Access or modify the WordPress database and configuration
• Install backdoors or web shells for persistent access
• Pivot to other systems on the network
• Exfiltrate sensitive customer and business data

Technical details regarding the specific exploitation mechanism can be found in the Patchstack RCE Vulnerability Report.

Detection Methods for CVE-2025-48100

Indicators of Compromise

• Unexpected PHP files or web shells appearing in WordPress directories, particularly within /wp-content/plugins/bidorbuystoreintegrator/
• Anomalous outbound network connections from the web server
• Unusual process spawning from PHP or web server processes (e.g., /bin/sh, curl, wget)
• Modified plugin files with unexpected code additions or obfuscated content
• Suspicious entries in web server access logs showing malformed or encoded parameters targeting the plugin

Detection Strategies

• Monitor WordPress plugin directories for unauthorized file modifications using file integrity monitoring (FIM)
• Implement Web Application Firewall (WAF) rules to detect code injection attempts in request parameters
• Review web server logs for requests containing suspicious patterns such as eval(, base64_decode(, system(, or remote URL inclusions
• Deploy endpoint detection solutions capable of identifying anomalous process chains originating from web server contexts

Monitoring Recommendations

• Enable verbose logging for the WordPress application and web server
• Configure alerts for new file creation or modification within plugin directories
• Monitor for PHP process anomalies including unexpected child processes or network connections
• Implement regular vulnerability scanning of WordPress installations to identify outdated or vulnerable plugins

How to Mitigate CVE-2025-48100

Immediate Actions Required

• Update the bidorbuy Store Integrator plugin to a patched version if available from the vendor
• If no patch is available, disable and remove the bidorbuystoreintegrator plugin immediately
• Audit the WordPress installation for signs of compromise, including unauthorized files or database modifications
• Review web server and WordPress logs for evidence of exploitation attempts
• Consider implementing a Web Application Firewall (WAF) to provide an additional layer of protection

Patch Information

Organizations should consult the Patchstack RCE Vulnerability Report for the latest patch information and remediation guidance. Ensure that the plugin is updated to a version that addresses CVE-2025-48100.

Workarounds

• Disable and remove the bidorbuy Store Integrator plugin until a security patch is applied
• Implement strict WAF rules to block requests containing code injection patterns targeting the plugin
• Restrict access to the WordPress admin interface and plugin endpoints using IP allowlisting
• Enable WordPress security hardening measures including disabling file editing from the admin panel

# Disable the vulnerable plugin via WP-CLI
wp plugin deactivate bidorbuystoreintegrator

# Remove the plugin files if deactivation is not sufficient
wp plugin delete bidorbuystoreintegrator

# Verify no unauthorized files exist in the plugins directory
find /var/www/html/wp-content/plugins/ -type f -name "*.php" -mtime -7 -ls