CVE-2025-10056 is a Server-Side Request Forgery (SSRF) vulnerability identified in the miunosoft Task Scheduler plugin for WordPress, affecting all versions up to and including 1.6.3. The vulnerability arises from the “Check Website” task functionality, which allows authenticated users with Administrator-level access or higher to trigger web requests originating from the server hosting the WordPress application. SSRF vulnerabilities enable attackers to abuse the server as a proxy to send crafted requests to arbitrary internal or external resources that may not be directly accessible from the attacker’s network. In this case, an attacker with sufficient privileges can leverage the SSRF flaw to query internal services, potentially extracting sensitive information or modifying internal configurations. The vulnerability has a CVSS 3.1 base score of 4.4, reflecting a medium severity level due to the requirement for high privileges (Administrator access), no user interaction, and the potential for limited confidentiality and integrity impact without affecting availability. Although no public exploits are known at this time, the vulnerability poses a risk in environments where the plugin is deployed and internal services are accessible from the WordPress server. The SSRF can be used to bypass network segmentation or firewall rules, making it a valuable reconnaissance and lateral movement tool for attackers who have already compromised administrative credentials. The vulnerability was publicly disclosed on October 15, 2025, and no official patches or updates have been linked yet, indicating that mitigation efforts must be proactive. Given the widespread use of WordPress in Europe, especially in small and medium enterprises and public sector websites, this vulnerability could be leveraged to compromise internal systems if exploited.

For European organizations, the SSRF vulnerability in the miunosoft Task Scheduler plugin could lead to unauthorized access to internal network resources, including sensitive databases, internal APIs, or management interfaces that are not exposed externally. This could result in data leakage, unauthorized modification of internal configurations, or further lateral movement within the network. The impact is particularly significant for organizations with complex internal infrastructures relying on segmented networks and internal-only services. Public sector entities, financial institutions, and critical infrastructure operators using WordPress with this plugin are at increased risk due to the potential exposure of sensitive internal systems. While the vulnerability requires administrator-level access, the risk remains high if credentials are compromised through phishing or other means. The medium CVSS score reflects moderate impact, but the potential for internal reconnaissance and data manipulation could escalate the severity in targeted attacks. Additionally, the absence of known exploits in the wild suggests that attackers may develop exploits, increasing future risk. The vulnerability could also be used to bypass internal firewalls and access controls, undermining network security postures common in European organizations.

To mitigate this vulnerability, European organizations should immediately audit their WordPress installations to identify the presence of the miunosoft Task Scheduler plugin and verify its version. Since no official patches are currently available, organizations should consider disabling or uninstalling the plugin until a secure update is released. Restricting administrative access to trusted personnel and enforcing strong authentication mechanisms, such as multi-factor authentication (MFA), will reduce the risk of credential compromise. Network segmentation should be enforced to limit the WordPress server’s ability to reach sensitive internal services, using firewall rules or internal access controls to block unauthorized outbound requests. Monitoring and logging of outbound HTTP requests from the WordPress server can help detect anomalous SSRF activity. Additionally, implementing Web Application Firewalls (WAFs) with rules to detect and block SSRF patterns may provide interim protection. Organizations should also educate administrators about the risks of SSRF and the importance of limiting plugin usage to only trusted and necessary components. Finally, staying updated with vendor advisories and applying patches promptly once available is critical.