CVE-2025-5932 is a Cross-Site Request Forgery (CSRF) vulnerability affecting the Homerunner plugin for WordPress, developed by coolrunner. This vulnerability exists in all versions up to and including 1.0.29 due to missing or incorrect nonce validation in the main_settings() function. Nonces in WordPress are security tokens used to verify that requests intended to change state originate from legitimate users and not from forged requests. The absence or improper implementation of nonce validation allows an attacker to craft a malicious request that, when executed by an authenticated site administrator (e.g., by clicking a link or visiting a malicious page), can update the plugin’s settings without the administrator’s consent. This vulnerability does not require the attacker to be authenticated, but it does require user interaction from an administrator, making it a UI:R (User Interaction Required) vulnerability. The CVSS v3.1 base score is 4.3 (medium severity), reflecting that the impact is limited to integrity (unauthorized changes to plugin settings) without affecting confidentiality or availability. There are no known exploits in the wild at the time of publication, and no patches have been linked yet. The vulnerability could lead to unauthorized configuration changes that might weaken site security or enable further attacks, depending on what settings are modified. Since the vulnerability affects a WordPress plugin, it is relevant to any WordPress site using Homerunner, which is a niche but potentially critical plugin depending on its use case (e.g., shipping or logistics integrations).

For European organizations, the primary impact is the potential unauthorized modification of plugin settings on WordPress sites using the Homerunner plugin. This could lead to degraded security posture or operational disruptions if the plugin controls critical business functions such as shipping logistics or order processing. While the vulnerability does not directly expose sensitive data or cause denial of service, unauthorized configuration changes could be leveraged as a foothold for further attacks or data manipulation. Organizations relying on Homerunner for e-commerce or supply chain management could face operational risks and reputational damage if attackers exploit this vulnerability to alter settings that affect order fulfillment or customer communications. Given the requirement for administrator interaction, the risk is somewhat mitigated by user awareness, but targeted phishing or social engineering campaigns could increase exploitation likelihood. The lack of known active exploits reduces immediate risk but does not eliminate the threat, especially as proof-of-concept exploits may emerge. European organizations with WordPress-based websites that integrate Homerunner should consider this vulnerability seriously, particularly those in retail, logistics, and e-commerce sectors where plugin misconfiguration could have cascading effects.

1. Immediate mitigation involves educating WordPress site administrators about the risk of clicking on untrusted links or visiting suspicious websites while logged into the WordPress admin panel. 2. Restrict administrator access to trusted personnel and enforce multi-factor authentication to reduce the risk of compromised credentials being exploited in conjunction with CSRF. 3. Monitor and audit plugin settings changes regularly to detect unauthorized modifications early. 4. Implement Web Application Firewall (WAF) rules that detect and block suspicious POST requests targeting the Homerunner plugin’s settings endpoints, especially those lacking valid nonce tokens. 5. If possible, temporarily disable or deactivate the Homerunner plugin until an official patch is released. 6. Follow the vendor’s updates closely and apply patches immediately once available. 7. Consider using security plugins that enforce strict nonce validation or add additional CSRF protections at the WordPress level. 8. Review and harden WordPress security configurations, including limiting admin session durations and IP-based access controls for the admin interface.