CVE-2026-25418: Bit Form WordPress Plugin SQL Injection

CVE-2026-25418 Overview

CVE-2026-25418 is a SQL Injection vulnerability discovered in the Bit Form WordPress plugin developed by bitpressadmin. The vulnerability arises from improper neutralization of special elements used in SQL commands (CWE-89), allowing attackers with high-level privileges to inject malicious SQL queries and potentially extract sensitive data from the underlying database.

Critical Impact

Authenticated attackers with administrative privileges can exploit this SQL Injection vulnerability to read sensitive database contents and potentially cause limited availability impact to the affected WordPress installations.

Affected Products

• Bit Form WordPress Plugin versions through 2.21.10
• WordPress installations running vulnerable Bit Form versions

Discovery Timeline

• 2026-02-19 - CVE-2026-25418 published to NVD
• 2026-02-19 - Last updated in NVD database

Technical Details for CVE-2026-25418

Vulnerability Analysis

This SQL Injection vulnerability affects the Bit Form WordPress plugin, a form builder solution for WordPress websites. The flaw exists due to insufficient input sanitization when processing user-supplied data in SQL queries. While the vulnerability requires high-level privileges (administrative access) to exploit, it can cross security boundaries to impact confidentiality of database contents.

The attack is network-accessible and does not require user interaction, making it exploitable through standard HTTP requests to the WordPress administration interface. Successful exploitation enables attackers to execute arbitrary SQL commands against the WordPress database, potentially exposing sensitive user data, credentials, and other confidential information stored within the database.

Root Cause

The root cause of this vulnerability is improper input validation and sanitization in the Bit Form plugin's codebase. User-controlled input is passed directly to SQL queries without proper parameterization or escaping of special SQL characters. This allows specially crafted input containing SQL metacharacters to modify the intended query structure and execute arbitrary database commands.

Attack Vector

The attack vector is network-based, requiring authenticated access with high privileges. An attacker with administrative access to the WordPress installation can craft malicious requests containing SQL injection payloads. These payloads bypass input validation and are incorporated into database queries, allowing the attacker to:

1. Extract sensitive data from the database through UNION-based or blind SQL injection techniques
2. Enumerate database structure including table names and column definitions
3. Potentially cause limited denial of service by executing resource-intensive queries

The vulnerability manifests when specially crafted SQL syntax is injected into form-related functionality. For detailed technical analysis, see the Patchstack SQL Injection Vulnerability advisory.

Detection Methods for CVE-2026-25418

Indicators of Compromise

• Unusual SQL error messages in WordPress or web server logs
• Unexpected database queries containing UNION SELECT, OR 1=1, or other SQL injection patterns
• Administrative user accounts accessing form management features with suspicious parameter values
• Database query logs showing time-based blind injection patterns (SLEEP, BENCHMARK functions)

Detection Strategies

• Monitor web application firewall (WAF) logs for SQL injection attack signatures targeting WordPress admin endpoints
• Review WordPress activity logs for administrative actions involving the Bit Form plugin
• Implement database query logging and alert on anomalous query patterns or syntax errors
• Deploy endpoint detection solutions to identify exploitation attempts against vulnerable plugin versions

Monitoring Recommendations

• Enable WordPress audit logging to track administrative actions and plugin interactions
• Configure alerts for SQL error responses from WordPress installations
• Monitor for bulk data extraction patterns that may indicate successful exploitation
• Review HTTP request logs for parameter tampering attempts targeting Bit Form endpoints

How to Mitigate CVE-2026-25418

Immediate Actions Required

• Update the Bit Form plugin to a version newer than 2.21.10 when a patched version becomes available
• Review administrative user accounts and remove unnecessary high-privilege access
• Implement a Web Application Firewall (WAF) with SQL injection detection rules
• Audit WordPress database for signs of unauthorized access or data extraction

Patch Information

Organizations using the Bit Form WordPress plugin should monitor the plugin's official release channels for security updates. Version 2.21.10 and all prior versions are confirmed vulnerable. For additional details and patch status, refer to the Patchstack security advisory.

Workarounds

• Restrict access to WordPress administrative interfaces using IP whitelisting
• Implement additional authentication controls for administrative access
• Deploy a WAF configured to block common SQL injection patterns
• Consider temporarily disabling the Bit Form plugin until a security patch is available

# WordPress configuration - restrict admin access by IP
# Add to .htaccess in wp-admin directory
<Files "admin.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>