CVE-2025-10683 is a SQL Injection vulnerability identified in the Easy Email Subscription plugin for WordPress, developed by yudiz. The flaw exists in all versions up to and including 1.3, where the 'uid' parameter is not properly sanitized or escaped before being incorporated into SQL queries. This improper neutralization of special elements (CWE-89) allows an authenticated attacker with Administrator-level privileges or higher to append malicious SQL code to existing queries. The vulnerability enables unauthorized extraction of sensitive information from the backend database, such as user data or configuration details. The attack vector is remote network-based (AV:N), requires low attack complexity (AC:L), but demands high privileges (PR:H) and no user interaction (UI:N). The scope is unchanged (S:U), and the impact affects confidentiality (C:H) but not integrity (I:N) or availability (A:N). No patches or official fixes have been released at the time of publication, and no known exploits are currently observed in the wild. The vulnerability was reserved on 2025-09-18 and published on 2025-11-06. Given the nature of WordPress plugins and their widespread use, this vulnerability poses a risk primarily to websites using this specific plugin, especially those with multiple administrators or high-value data stored in the database.

The primary impact of CVE-2025-10683 is unauthorized disclosure of sensitive information from the database of affected WordPress sites. Since the vulnerability requires administrator-level access, the threat is limited to insiders or attackers who have already compromised an admin account. However, once exploited, attackers can extract confidential data such as user credentials, email lists, or other stored information, potentially leading to privacy violations, targeted phishing, or further compromise. The vulnerability does not allow modification or deletion of data, nor does it affect service availability, limiting its destructive potential. Organizations relying on the Easy Email Subscription plugin risk data leakage and reputational damage if exploited. The medium CVSS score reflects the balance between the high privilege requirement and the significant confidentiality impact. The absence of known exploits reduces immediate risk but does not eliminate the need for remediation. This vulnerability could be leveraged in targeted attacks against high-value WordPress sites, especially those in sectors like e-commerce, media, or government that use this plugin for email subscriptions.

To mitigate CVE-2025-10683, organizations should first check if an updated version of the Easy Email Subscription plugin is available from yudiz that addresses this SQL Injection vulnerability and apply it promptly. In the absence of an official patch, administrators should consider temporarily disabling or uninstalling the plugin to eliminate the attack surface. Restrict administrator access strictly to trusted personnel and enforce strong authentication mechanisms such as multi-factor authentication to reduce the risk of credential compromise. Conduct regular audits of admin accounts and monitor database query logs for unusual or suspicious activity indicative of SQL Injection attempts. Employ Web Application Firewalls (WAFs) with custom rules to detect and block malicious SQL payloads targeting the 'uid' parameter. Developers maintaining the plugin should implement parameterized queries or prepared statements to ensure proper input sanitization and escaping. Additionally, segregate database permissions to limit the extent of data accessible by the plugin's database user. Finally, maintain regular backups of the website and database to enable recovery in case of compromise.