CVE-2025-14370 is a vulnerability classified under CWE-862 (Missing Authorization) found in the Quote Comments plugin for WordPress, developed by metodiew. The issue exists in all versions up to and including 3.0.0, specifically within the quotecomments_add_admin function, which lacks proper authorization checks. This flaw enables any authenticated user with at least Subscriber-level privileges to manipulate the 'action' parameter to update arbitrary plugin options without proper permission validation. Since WordPress Subscriber roles are typically assigned to users with minimal privileges, this vulnerability significantly lowers the barrier for exploitation. The vulnerability does not affect confidentiality or availability directly but compromises the integrity of the plugin's configuration, potentially allowing attackers to alter plugin behavior or settings maliciously. The CVSS 3.1 base score is 5.3, indicating medium severity, with an attack vector of network, low attack complexity, no privileges required beyond Subscriber, and no user interaction needed. No known exploits are currently in the wild, and no patches have been published as of the vulnerability disclosure date. The vulnerability is particularly concerning for websites that allow user registration with Subscriber roles or higher, as it expands the attack surface for privilege escalation or persistent unauthorized changes within the plugin's scope.

The primary impact of CVE-2025-14370 is the unauthorized modification of plugin options, which can lead to altered plugin behavior, potential privilege escalation, or persistent malicious configurations within the WordPress environment. While it does not directly expose sensitive data or cause denial of service, the integrity compromise can facilitate further attacks or undermine site functionality. Organizations relying on the Quote Comments plugin may face increased risk of unauthorized changes that could affect user experience, site stability, or security posture. Since the vulnerability can be exploited by low-privilege authenticated users, sites with open registration or multiple user roles are particularly vulnerable. This could lead to internal misuse or exploitation by compromised accounts. The lack of patches and known exploits means the risk is currently theoretical but should be treated proactively to prevent future exploitation. The widespread use of WordPress globally means this vulnerability could affect a large number of websites, especially those that use this specific plugin and allow user registrations.

1. Immediately restrict user registration or downgrade user roles to prevent untrusted users from obtaining Subscriber-level access or higher. 2. Implement strict access controls and monitor user activities related to plugin settings changes. 3. Temporarily disable or uninstall the Quote Comments plugin until an official patch is released. 4. Use Web Application Firewalls (WAFs) with custom rules to detect and block suspicious requests targeting the 'action' parameter in the plugin. 5. Regularly audit plugin configurations and logs for unauthorized changes. 6. Encourage plugin developers to release a patch addressing the missing authorization checks and apply it promptly once available. 7. Educate site administrators about the risks of granting unnecessary privileges to users and enforce the principle of least privilege. 8. Consider alternative plugins with better security track records if immediate patching is not feasible.