CVE-2025-10738: WordPress URL Shortener SQLi Vulnerability

CVE-2025-10738 Overview

The URL Shortener Plugin For WordPress (also known as Exact Links) is vulnerable to SQL Injection via the analytic_id parameter in all versions up to and including 3.0.7. This vulnerability stems from insufficient escaping on the user-supplied parameter and lack of sufficient preparation on the existing SQL query. The flaw enables unauthenticated attackers to append additional SQL queries into already existing queries, which can be exploited to extract sensitive information from the database.

Critical Impact

Unauthenticated remote attackers can exploit this SQL Injection vulnerability to extract sensitive database information, potentially compromising user credentials, site configuration data, and other confidential information stored in the WordPress database.

Affected Products

• URL Shortener Plugin For WordPress (Exact Links) versions up to and including 3.0.7
• WordPress installations running the vulnerable plugin versions
• Sites using the LinkAnalytics.php component with the vulnerable analytic_id parameter handling

Discovery Timeline

• 2025-12-13 - CVE CVE-2025-10738 published to NVD
• 2025-12-15 - Last updated in NVD database

Technical Details for CVE-2025-10738

Vulnerability Analysis

This SQL Injection vulnerability affects the URL Shortener Plugin For WordPress, specifically within the LinkAnalytics.php file. The vulnerability exists because user-supplied input to the analytic_id parameter is not properly sanitized or escaped before being incorporated into SQL queries. Without adequate parameterization or prepared statements, the application directly concatenates user input into database queries, creating an injection point.

The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), which represents one of the most dangerous web application security flaws. Since the vulnerability can be exploited without authentication, any unauthenticated user with network access to a vulnerable WordPress site can attempt exploitation.

Root Cause

The root cause of this vulnerability is the lack of proper input validation, escaping, and prepared statement usage in the LinkAnalytics.php model. When the analytic_id parameter is processed, the application fails to sanitize the input or use parameterized queries, allowing malicious SQL syntax to be injected and executed by the database engine. This is a fundamental secure coding failure that violates WordPress security best practices for database interactions.

Attack Vector

The attack vector is network-based and requires no authentication or user interaction. An attacker can craft malicious HTTP requests containing SQL injection payloads in the analytic_id parameter. The vulnerable endpoint processes this parameter without proper sanitization, allowing the injected SQL to execute within the context of the existing query.

A typical exploitation scenario involves:

1. Identifying a WordPress site running the vulnerable URL Shortener Plugin
2. Crafting a request with SQL injection payload in the analytic_id parameter
3. Using techniques such as UNION-based injection, error-based injection, or time-based blind injection to extract data
4. Retrieving sensitive information including usernames, password hashes, email addresses, and potentially authentication tokens from the WordPress database

The vulnerability allows attackers to read sensitive data from the database. Depending on database configuration and permissions, attackers may also be able to modify or delete data, or in some cases escalate to remote code execution through techniques such as writing to files via SQL commands.

Detection Methods for CVE-2025-10738

Indicators of Compromise

• Unusual database queries containing UNION SELECT, OR 1=1, or other SQL injection patterns targeting the analytic_id parameter
• Web server logs showing requests to plugin endpoints with encoded or suspicious characters in query parameters
• Database logs indicating unauthorized data extraction or enumeration attempts
• Unexplained changes to database records or sudden increases in database query volume

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in HTTP requests
• Monitor WordPress access logs for requests containing SQL keywords (UNION, SELECT, INSERT, DELETE, DROP) in URL parameters
• Deploy database activity monitoring to identify anomalous query patterns or unauthorized data access
• Use security plugins that provide real-time vulnerability scanning and attack detection for WordPress installations

Monitoring Recommendations

• Enable verbose logging on WordPress and the underlying database to capture detailed request and query information
• Configure alerting for database errors that may indicate failed injection attempts
• Implement rate limiting on plugin endpoints to slow down automated exploitation attempts
• Regularly review web server access logs for suspicious patterns targeting the URL Shortener Plugin endpoints

How to Mitigate CVE-2025-10738

Immediate Actions Required

• Update the URL Shortener Plugin For WordPress (Exact Links) to a patched version beyond 3.0.7 immediately
• If updates are not available, disable and remove the plugin until a security patch is released
• Review database logs for evidence of exploitation and check for unauthorized data access
• Consider resetting passwords for all WordPress users if compromise is suspected
• Implement a Web Application Firewall with SQL injection protection rules as an additional defense layer

Patch Information

Organizations should update to a patched version of the URL Shortener Plugin For WordPress as soon as one becomes available. Check the WordPress Exact Links Plugin page for the latest security updates. Additional vulnerability details and patch status can be found in the Wordfence Vulnerability Analysis.

The vulnerable code can be reviewed at the WordPress Plugin Code repository for security audit purposes.

Workarounds

• Disable the URL Shortener Plugin For WordPress until a patched version is available
• Implement WAF rules to block requests containing SQL injection patterns in the analytic_id parameter
• Restrict access to the vulnerable plugin endpoints via IP allowlisting if feasible
• Apply principle of least privilege to the WordPress database user, limiting permissions to prevent sensitive data access
• Consider using database connection proxies that can filter and sanitize queries as an additional protection layer

# WordPress WAF configuration example for ModSecurity
# Add to .htaccess or ModSecurity configuration
SecRule ARGS:analytic_id "@detectSQLi" \
    "id:100001,phase:2,deny,status:403,msg:'SQL Injection attempt blocked in analytic_id parameter'"