CVE-2025-10861 is a Server-Side Request Forgery (SSRF) vulnerability identified in the roxnor WordPress plugin named 'Popup builder with Gamification, Multi-Step Popups, Page-Level Targeting, and WooCommerce Triggers.' This plugin is widely used to create interactive popups with gamification elements and WooCommerce integration. The vulnerability exists in all versions up to and including 2.1.4 due to insufficient validation of URLs passed via a URL parameter. An unauthenticated attacker can exploit this flaw by crafting malicious requests that cause the server hosting the WordPress site to perform arbitrary HTTP requests to internal or external systems. This can enable attackers to perform internal network reconnaissance, access internal services not exposed externally, or potentially modify information if internal services are vulnerable. The vulnerability has a CVSS 3.1 base score of 7.5, reflecting high severity, with no privileges or user interaction required, and network attack vector. Although version 2.1.4 includes a partial patch, full remediation may require further updates or configuration changes. No public exploits have been reported yet, but the risk remains significant given the plugin's popularity and the potential impact of SSRF attacks. The vulnerability is categorized under CWE-918, which covers SSRF issues that allow attackers to abuse server functionality to send crafted requests. The plugin’s integration with WooCommerce increases the risk profile for e-commerce sites, where internal service exposure could lead to data leakage or business disruption.

For European organizations, this SSRF vulnerability poses a significant risk, particularly for those operating WordPress sites with WooCommerce and using the affected roxnor plugin. Exploitation could allow attackers to bypass perimeter defenses and access internal services, potentially exposing sensitive data or enabling further lateral movement within the network. This could lead to unauthorized data disclosure, disruption of internal services, or preparation for more complex attacks such as privilege escalation or data exfiltration. E-commerce sites are especially at risk due to the potential exposure of customer data and transaction information. The vulnerability's unauthenticated nature increases the attack surface, allowing external attackers to exploit it without credentials. Given the widespread use of WordPress and WooCommerce in Europe, the impact could be broad, affecting organizations ranging from small businesses to large enterprises. Additionally, internal network reconnaissance facilitated by SSRF can aid attackers in mapping network topology and identifying further vulnerabilities, increasing the overall threat to organizational security.

1. Immediately update the roxnor Popup builder plugin to the latest version beyond 2.1.4 once a full patch is released, or apply any available security updates addressing this SSRF vulnerability. 2. Implement strict outbound network filtering on web servers hosting WordPress to restrict HTTP requests to only trusted destinations, preventing arbitrary internal or external requests. 3. Employ Web Application Firewalls (WAFs) with rules designed to detect and block SSRF attack patterns, particularly those targeting URL parameters. 4. Conduct thorough code reviews and input validation enhancements on URL parameters to ensure only safe, expected URLs are processed. 5. Monitor server logs and network traffic for unusual outbound requests or patterns indicative of SSRF exploitation attempts. 6. Segment internal networks to limit access from web servers to critical internal services, reducing the impact of potential SSRF exploitation. 7. Educate development and security teams about SSRF risks and encourage timely patch management and vulnerability scanning focused on plugins and third-party components.