CVE-2025-58604 Overview
CVE-2025-58604 is a SQL Injection vulnerability affecting the WPFunnels Mail Mint plugin for WordPress [CWE-89]. The flaw stems from improper neutralization of special elements used in SQL commands. Attackers with high privileges can inject malicious SQL statements through the plugin's database interactions. The issue affects all versions of Mail Mint up to and including 1.18.5. Successful exploitation permits unauthorized data access and can extend impact beyond the vulnerable component due to a changed security scope.
Critical Impact
Authenticated attackers with high privileges can execute arbitrary SQL queries against the WordPress database, leading to confidentiality loss and limited availability impact across a broader scope.
Affected Products
- WPFunnels Mail Mint plugin for WordPress
- Mail Mint versions from n/a through 1.18.5
- WordPress sites running the vulnerable mail-mint plugin
Discovery Timeline
- 2025-09-03 - CVE-2025-58604 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-58604
Vulnerability Analysis
The vulnerability resides in the Mail Mint plugin's handling of user-supplied input within SQL query construction. The plugin fails to properly sanitize or parameterize input before passing it to database queries. An attacker with high-level privileges on the WordPress site can craft input containing SQL metacharacters. These characters break out of the intended query context and inject additional SQL logic.
The CWE-89 classification confirms the root defect: improper neutralization of special elements used in an SQL command. Because the scope is changed, successful injection can affect resources beyond the plugin itself, including the broader WordPress database and any data accessible to the WordPress database user.
Root Cause
The root cause is the concatenation or unsafe interpolation of user-controlled values into SQL statements without using prepared statements or the WordPress $wpdb->prepare() API. When input reaches the database layer with SQL metacharacters intact, the parser treats those characters as query syntax rather than literal data.
Attack Vector
Exploitation requires network access to the WordPress site and authentication with high privileges. The attack complexity is low and requires no user interaction. An attacker submits crafted parameters to a vulnerable plugin endpoint that constructs SQL queries. The injected payload alters query logic to extract data, enumerate tables, or manipulate limited records. Detailed exploitation particulars are described in the Patchstack Vulnerability Report.
Detection Methods for CVE-2025-58604
Indicators of Compromise
- Unexpected SQL syntax such as UNION SELECT, SLEEP(, BENCHMARK(, or comment sequences (--, #) in HTTP request parameters directed at Mail Mint endpoints
- Database error messages returned to authenticated users interacting with Mail Mint features
- Unusual read patterns against wp_users, wp_usermeta, or Mail Mint tables originating from web application processes
Detection Strategies
- Inspect WordPress and web server access logs for requests to mail-mint plugin routes containing SQL metacharacters or encoded variants (%27, %22, 0x)
- Deploy a web application firewall rule set that flags SQL injection payloads targeting /wp-admin/admin-ajax.php and Mail Mint REST endpoints
- Correlate authenticated admin-level sessions with anomalous database query volumes or query durations
Monitoring Recommendations
- Enable MySQL general query logging or slow query logging on WordPress database hosts to capture suspicious query structures
- Monitor for privilege changes and new administrator account creation on WordPress instances running Mail Mint
- Alert on outbound data transfers from web servers that exceed baseline volumes after Mail Mint requests
How to Mitigate CVE-2025-58604
Immediate Actions Required
- Identify all WordPress installations running the Mail Mint plugin and confirm the installed version
- Upgrade Mail Mint to a version later than 1.18.5 once the vendor patch is available
- Restrict administrative access to trusted personnel and enforce multi-factor authentication on privileged WordPress accounts
- Review WordPress and database logs for evidence of prior exploitation attempts
Patch Information
The vendor advisory is tracked in the Patchstack Vulnerability Report. Administrators should update to the fixed release published by WPFunnels for the mail-mint plugin. Verify the plugin version after update through the WordPress admin dashboard or via WP-CLI.
Workarounds
- Temporarily deactivate the Mail Mint plugin until a patched version is applied
- Place a web application firewall in front of the WordPress site with SQL injection detection enabled for plugin endpoints
- Reduce the number of high-privilege WordPress accounts and audit existing administrator sessions
- Apply least-privilege principles to the WordPress database user where feasible, limiting write operations to required tables
# Verify Mail Mint plugin version and disable if vulnerable
wp plugin get mail-mint --field=version
wp plugin deactivate mail-mint
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
