The BigBuy Dropshipping Connector for WooCommerce plugin for WordPress suffers from a vulnerability identified as CVE-2025-12039, classified under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The root cause is insufficient validation of IP addresses, where the plugin relies primarily on user-supplied HTTP headers (such as X-Forwarded-For) to determine client IP addresses. This flawed approach allows unauthenticated attackers to spoof IP addresses by crafting HTTP requests with manipulated headers. Exploiting this, attackers can bypass any IP-based access controls implemented by the plugin and retrieve the output of the phpinfo() function. The phpinfo() output contains detailed information about the PHP environment, including configuration settings, loaded modules, environment variables, and potentially sensitive server data. Such information disclosure can facilitate further attacks by revealing software versions, installed extensions, and server paths. The vulnerability affects all versions of the plugin up to and including 2.0.5. The CVSS v3.1 base score is 5.3, indicating a medium severity level. The attack vector is network-based (AV:N), requires no privileges (PR:N), no user interaction (UI:N), and impacts confidentiality (C:L) but not integrity or availability. No patches or fixes are currently linked, and no known exploits have been reported in the wild as of the publication date (November 21, 2025).

For European organizations, especially those operating e-commerce platforms using WooCommerce with the BigBuy Dropshipping Connector plugin, this vulnerability poses a risk of sensitive information leakage. Disclosure of phpinfo() output can reveal server configuration details that attackers can leverage to identify further vulnerabilities or misconfigurations, increasing the risk of targeted attacks such as privilege escalation, code injection, or lateral movement. While the vulnerability does not directly allow code execution or data modification, the information exposure can significantly aid attackers in crafting more effective attacks. This is particularly critical for businesses handling personal customer data under GDPR regulations, as any subsequent compromise could lead to data breaches and regulatory penalties. Additionally, the ease of exploitation without authentication or user interaction increases the likelihood of automated scanning and exploitation attempts. Organizations relying on this plugin for dropshipping operations may face operational disruptions if attackers leverage the disclosed information to compromise their infrastructure.

Immediate mitigation steps include restricting access to the phpinfo() endpoint by configuring the web server or application firewall to deny requests from untrusted sources or those with suspicious HTTP headers. Organizations should implement strict validation of IP addresses by avoiding reliance on user-supplied headers and instead use server-side mechanisms or trusted proxies for IP identification. Monitoring web server logs for unusual or repeated requests containing spoofed headers can help detect exploitation attempts early. Until an official patch is released, consider disabling or removing the vulnerable plugin if feasible, or isolating it in a segmented environment with limited exposure. Employing a Web Application Firewall (WAF) with custom rules to block requests with manipulated X-Forwarded-For or similar headers can reduce risk. Once a patch becomes available, prioritize timely updates to the plugin. Additionally, conduct security audits of the WordPress environment to ensure no other plugins or configurations expose sensitive information similarly.