CVE-2025-10683: 
WordPress vulnerability analysis and mitigation

CVE-2025-10683 is a SQL Injection vulnerability in the Easy Email Subscription plugin for WordPress, affecting all versions up to and including 1.3. The flaw exists in the uid parameter due to insufficient input escaping and lack of proper SQL query preparation, allowing authenticated attackers with Administrator-level access to extract sensitive data from the database. It was disclosed on November 5–6, 2025, with Wordfence as the assigning CNA. The CVSS v3.1 base score is 4.9 (Medium), reflecting the high privilege requirement that limits its attack surface (Wordfence, Red Hat CVE).

The vulnerability is classified as CWE-89 (Improper Neutralization of Special Elements used in an SQL Command). The uid parameter passed to the plugin's backend functionality is not properly escaped or parameterized before being incorporated into SQL queries, enabling an authenticated administrator to append arbitrary SQL statements. Exploitation requires network access and Administrator-level WordPress credentials, but no user interaction is needed. A patch was committed to the WordPress plugin repository as changeset 3388578 (WordPress Trac, Wordfence).

Successful exploitation allows an authenticated administrator to extract sensitive information from the WordPress database, including user credentials, email addresses, subscription data, and other stored records. The impact is limited to confidentiality — integrity and availability are not directly affected by this vulnerability. Because exploitation requires Administrator-level access, the risk of opportunistic mass exploitation is low, though it could be leveraged in insider threat scenarios or following an account compromise (Wordfence, Red Hat CVE).

No public proof-of-concept exploit code or in-the-wild exploitation has been reported for CVE-2025-10683. The EPSS score is approximately 0.024% (0.000240), indicating a very low probability of exploitation in the near term. The vulnerability is not listed in CISA's Known Exploited Vulnerabilities (KEV) catalog. The high privilege requirement (Administrator-level access) significantly constrains the exploitability of this flaw (Wordfence).

1. Authentication: Log in to the WordPress admin panel with Administrator-level credentials (or higher).
2. Identify the vulnerable parameter: Navigate to the Easy Email Subscription plugin's admin functionality that processes the uid parameter.
3. Craft a malicious SQL payload: Append SQL injection syntax to the uid parameter value (e.g., 1 UNION SELECT user_login, user_pass, NULL FROM wp_users--) to extend the existing query.
4. Submit the request: Send the crafted request (via browser, Burp Suite, or a scripted HTTP client) to the plugin's endpoint that processes the uid parameter.
5. Extract data: Observe the response for database contents returned by the injected query, such as usernames, hashed passwords, or email addresses from the WordPress database (Wordfence).

• Logs: WordPress access logs showing unusual or malformed values in the uid parameter, particularly those containing SQL keywords such as UNION, SELECT, FROM, --, or encoded equivalents.
• Database: Unexpected or anomalous database query patterns in MySQL slow query logs or general query logs originating from the WordPress application user.
• Network: Repeated authenticated POST or GET requests to Easy Email Subscription plugin endpoints with abnormal parameter lengths or SQL-like content in the uid field.

Users should update the Easy Email Subscription plugin to a version beyond 1.3, as a patch was committed to the WordPress plugin repository (changeset 3388578). Until an update is applied, administrators should restrict access to the WordPress admin panel using IP allowlisting or two-factor authentication to reduce the risk of credential compromise leading to exploitation. Monitoring WordPress admin activity logs for unusual database-related behavior is also recommended (WordPress Trac, Wordfence).

Wordfence included CVE-2025-10683 in its weekly WordPress vulnerability report for November 3–9, 2025, noting it as part of a broader set of plugin vulnerabilities disclosed that week (Wordfence Blog). No significant independent researcher commentary or broader media coverage has been identified for this vulnerability, consistent with its medium severity and high privilege requirement.