CVE-2025-60161 is a Server-Side Request Forgery (SSRF) vulnerability identified in BdThemes ZoloBlocks, a WordPress plugin used for building website blocks. The vulnerability exists in versions up to 2.3.11 and allows an unauthenticated attacker to coerce the vulnerable server into making HTTP requests to arbitrary internal or external resources. SSRF flaws typically arise when user-supplied URLs or network requests are not properly validated, enabling attackers to bypass network access controls, access internal services, or exfiltrate sensitive information. In this case, the vulnerability is classified under CWE-918, indicating improper restriction of outgoing requests. The CVSS v3.1 base score of 5.4 reflects a medium severity, with the vector indicating network attack vector (AV:N), high attack complexity (AC:H), no privileges required (PR:N), no user interaction (UI:N), and a scope change (S:C) with low confidentiality and integrity impact (C:L/I:L) and no availability impact (A:N). The scope change means the vulnerability affects components beyond the initially vulnerable component, potentially impacting other parts of the system. No patches or known exploits are currently available, but the vulnerability's presence in a widely used WordPress plugin poses a risk for exploitation once weaponized. The vulnerability could be leveraged to access internal services, metadata endpoints, or perform SSRF-based attacks such as port scanning or bypassing firewalls.

For European organizations, the SSRF vulnerability in ZoloBlocks can lead to unauthorized internal network access, exposing sensitive internal services or data. This can compromise confidentiality by leaking internal information or credentials accessible only within the network. Integrity impact is limited but possible if internal services are manipulated via forged requests. Availability impact is negligible. Organizations relying on WordPress sites with ZoloBlocks installed, especially those hosting sensitive internal APIs or metadata services, are at risk. Attackers could use SSRF to pivot within the network, potentially escalating attacks. The medium CVSS score reflects moderate risk, but the lack of required privileges and user interaction increases the attack surface. European sectors such as finance, healthcare, and government, which often use WordPress for public-facing sites but maintain sensitive internal networks, could be targeted. The absence of known exploits currently reduces immediate risk but does not eliminate future threats.

1. Monitor BdThemes ZoloBlocks official channels for patches and apply updates immediately once available. 2. Implement strict input validation and sanitization on all user-supplied URLs or parameters that could trigger server-side requests. 3. Restrict outbound HTTP requests from web servers hosting ZoloBlocks using firewall rules or network segmentation to limit access to only necessary external services. 4. Employ Web Application Firewalls (WAFs) with rules to detect and block SSRF attack patterns targeting the plugin. 5. Conduct internal network audits to identify and secure sensitive internal services that could be exposed via SSRF. 6. Use network-level protections such as egress filtering and DNS filtering to prevent unauthorized server requests. 7. Educate developers and administrators about SSRF risks and secure coding practices related to handling external requests. 8. Regularly review logs for unusual outbound request patterns originating from web servers running ZoloBlocks.