CVE-2025-11427 is a Blind Server-Side Request Forgery (SSRF) vulnerability classified under CWE-918, found in the WP Migrate Lite – WordPress Migration Made Easy plugin for WordPress. This vulnerability affects all versions up to and including 2.7.6. The flaw exists in the wpmdb_flush AJAX action, which does not properly validate or restrict URLs that the server can request. An unauthenticated attacker can exploit this by sending specially crafted requests to the vulnerable endpoint, causing the server to initiate HTTP requests to arbitrary locations. Because the requests originate from the server itself, attackers can use this to access internal network resources that are not directly reachable from the internet, such as internal APIs, databases, or metadata services. The 'blind' nature means the attacker does not receive the response content directly but can infer information based on side effects like timing or error messages. The vulnerability impacts confidentiality by potentially exposing internal network structure or sensitive data but does not affect integrity or availability. The CVSS v3.1 score is 5.8 (medium), reflecting the ease of exploitation (no authentication or user interaction required) but limited impact scope. No patches or exploits are currently publicly available, but the risk remains significant due to the widespread use of WordPress and this plugin for site migration tasks.

For European organizations, this SSRF vulnerability poses a risk of internal network reconnaissance and potential data exposure. Many enterprises use WordPress for public-facing websites and rely on plugins like WP Migrate Lite for site migration and backup. Exploiting this vulnerability could allow attackers to bypass perimeter defenses and access internal services that are otherwise inaccessible externally, such as internal APIs, cloud metadata endpoints, or administrative interfaces. This could lead to further exploitation, lateral movement, or data leakage. Although the vulnerability does not directly allow code execution or denial of service, the ability to probe internal infrastructure is a critical step in complex attack chains. Organizations in Europe with sensitive internal services or cloud environments that rely on metadata services (e.g., AWS, Azure) are particularly at risk. The medium severity score reflects a moderate but non-negligible threat, especially given the unauthenticated nature of the exploit.

Immediate mitigation should focus on restricting the vulnerable AJAX action by disabling or restricting access to the wpmdb_flush endpoint until a patch is available. Network-level controls should be implemented to limit outbound HTTP requests from web servers hosting WordPress to only trusted destinations, preventing SSRF exploitation from reaching internal services. Web Application Firewalls (WAFs) can be configured to detect and block suspicious requests targeting the vulnerable AJAX action. Monitoring and logging of outbound requests from web servers should be enhanced to detect anomalous behavior indicative of SSRF attempts. Once the vendor releases a patch, organizations must promptly update the WP Migrate Lite plugin to the fixed version. Additionally, reviewing internal network segmentation and minimizing exposure of sensitive internal services can reduce the attack surface. Security teams should also educate developers and administrators about SSRF risks and ensure secure coding practices for plugins and custom code.