CVE-2025-46255 is a vulnerability classified under CWE-862 (Missing Authorization) found in the LoginWP - Pro plugin developed by Marketing Fire LLC, affecting all versions up to 4.0.8.5. This vulnerability arises because certain functions within the plugin are not properly constrained by Access Control Lists (ACLs), allowing unauthenticated remote attackers to invoke sensitive functionality without proper authorization. The CVSS 3.1 base score of 7.5 reflects the network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), no confidentiality impact (C:N), high integrity impact (I:H), and no availability impact (A:N). This means attackers can remotely exploit the flaw to alter or manipulate data or configurations that should be protected, potentially undermining the integrity of the affected WordPress sites. The vulnerability does not expose confidential information or cause denial of service but can lead to unauthorized changes that may facilitate further attacks or disrupt business processes. No patches or fixes have been released at the time of publication, and no active exploits have been reported in the wild. The vulnerability was reserved in April 2025 and published in January 2026, indicating a recent disclosure. The affected product, LoginWP - Pro, is a WordPress plugin used to customize login experiences, often deployed by marketing and digital agencies, making it a target for attackers seeking to manipulate site access or user flows.

For European organizations, the primary impact of CVE-2025-46255 is the potential unauthorized modification of website functionality or configurations managed via the LoginWP - Pro plugin. This can lead to integrity breaches, such as unauthorized changes to login workflows, redirections, or user access controls, which could facilitate further exploitation or fraud. While confidentiality and availability are not directly affected, the integrity compromise can undermine trust in the affected websites and potentially expose organizations to reputational damage, regulatory scrutiny (especially under GDPR if user data is indirectly affected), and operational disruptions. Organizations relying on LoginWP - Pro for customer-facing portals or internal access controls are at greater risk. The lack of required authentication and user interaction increases the threat level, as attackers can exploit the vulnerability remotely without prior access. The absence of known exploits in the wild currently reduces immediate risk but does not eliminate the potential for future attacks once exploit code becomes available. European digital marketing firms, e-commerce platforms, and service providers using this plugin are particularly vulnerable to targeted attacks aiming to manipulate user access or site behavior.

1. Immediately audit all WordPress sites for the presence of LoginWP - Pro plugin and identify versions up to 4.0.8.5. 2. Restrict external network access to administrative endpoints and plugin-specific functionality using web application firewalls (WAFs) and IP whitelisting where feasible. 3. Implement strict monitoring and alerting for unusual changes in login workflows, redirects, or unauthorized configuration modifications. 4. Temporarily disable or deactivate the LoginWP - Pro plugin on non-critical systems until a vendor patch is released. 5. Engage with Marketing Fire LLC or official plugin channels to obtain updates or patches as soon as they become available. 6. Harden WordPress installations by enforcing least privilege principles for user roles and limiting plugin installation rights. 7. Conduct penetration testing focused on access control weaknesses in the login and authentication modules. 8. Educate site administrators about the risk and signs of exploitation related to this vulnerability. 9. Consider deploying runtime application self-protection (RASP) solutions to detect and block unauthorized function calls. 10. Maintain regular backups and ensure recovery procedures are tested to mitigate potential damage from integrity violations.