CVE-2025-69308: Nestbyte Core SQL Injection Vulnerability

CVE-2025-69308 Overview

CVE-2025-69308 is a Blind SQL Injection vulnerability affecting the Nestbyte Core WordPress plugin developed by TeconceTheme. This vulnerability allows unauthenticated attackers to execute arbitrary SQL queries against the WordPress database through improper neutralization of special elements used in SQL commands. The blind nature of this injection means attackers can extract sensitive data through time-based or boolean-based inference techniques without receiving direct error messages.

Critical Impact

Unauthenticated attackers can extract sensitive database contents including user credentials, configuration data, and potentially gain full administrative access to WordPress installations running vulnerable versions of the Nestbyte Core plugin.

Affected Products

• Nestbyte Core WordPress Plugin version 1.2 and earlier
• WordPress installations with Nestbyte Core plugin active
• Sites using TeconceTheme themes with Nestbyte Core dependency

Discovery Timeline

• 2026-02-20 - CVE-2025-69308 published to NVD
• 2026-02-24 - Last updated in NVD database

Technical Details for CVE-2025-69308

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) exists in the Nestbyte Core plugin due to improper neutralization of user-supplied input before incorporating it into SQL queries. The vulnerability is classified as a Blind SQL Injection, meaning the application does not return SQL error messages or query results directly to the attacker. Instead, attackers must infer database content through observable differences in application behavior, such as response times (time-based blind injection) or conditional page content (boolean-based blind injection).

The network-based attack vector with no authentication requirements significantly increases the exploitability of this vulnerability. Successful exploitation can lead to complete confidentiality compromise of database contents and may cause limited availability impact to the affected WordPress installation.

Root Cause

The root cause stems from insufficient input validation and lack of parameterized queries within the Nestbyte Core plugin. User-controllable data is directly concatenated into SQL statements without proper sanitization or use of prepared statements with bound parameters. This allows specially crafted input containing SQL metacharacters to modify the intended query logic and extract unauthorized information from the database.

Attack Vector

The vulnerability is exploitable over the network without requiring any authentication or user interaction. Attackers can craft malicious HTTP requests containing SQL injection payloads targeting vulnerable plugin endpoints. Due to the blind nature of the injection, attackers typically employ automated tools to systematically extract database content character by character through conditional queries.

The attack methodology typically involves:

1. Identifying vulnerable input parameters in plugin functionality
2. Injecting conditional SQL statements that produce detectable differences
3. Using binary search algorithms to efficiently extract data
4. Iterating through database tables, columns, and records

Detection Methods for CVE-2025-69308

Indicators of Compromise

• Unusual database query patterns showing conditional SQL statements in logs
• HTTP requests containing SQL injection payloads targeting Nestbyte Core plugin endpoints
• Anomalous response time patterns indicating time-based blind SQL injection attempts
• Evidence of SLEEP(), BENCHMARK(), or WAITFOR functions in web server logs

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect SQL injection patterns in requests
• Monitor WordPress database query logs for suspicious conditional statements
• Implement request logging for all Nestbyte Core plugin endpoints
• Use SQL injection detection signatures to identify exploitation attempts
• Enable WordPress security plugins with real-time threat detection capabilities

Monitoring Recommendations

• Audit web server access logs for requests containing SQL metacharacters (', ", ;, --, UNION, SELECT)
• Monitor database performance for unusual query execution times
• Set up alerts for high-volume requests to specific plugin endpoints
• Review WordPress user accounts for unauthorized administrative access
• Check for unexpected database modifications or data exfiltration indicators

How to Mitigate CVE-2025-69308

Immediate Actions Required

• Disable or deactivate the Nestbyte Core plugin immediately if running version 1.2 or earlier
• Review database access logs for evidence of exploitation
• Consider taking affected WordPress sites offline until patched
• Implement WAF rules to block SQL injection patterns targeting the plugin
• Audit WordPress user accounts and reset administrative credentials as a precaution

Patch Information

Organizations should monitor the Patchstack vulnerability database for updates regarding official patches from TeconceTheme. No patched version has been confirmed at this time. Contact the plugin vendor directly for remediation timeline information.

Workarounds

• Completely disable the Nestbyte Core plugin until a security patch is available
• Implement strict WAF rules to filter SQL injection payloads at the perimeter
• Restrict access to WordPress admin and plugin endpoints via IP whitelisting
• Deploy virtual patching through security plugins like Wordfence or Sucuri
• Consider migrating to alternative WordPress theme frameworks not dependent on vulnerable components

# Disable Nestbyte Core plugin via WP-CLI
wp plugin deactivate nestbyte-core

# Verify plugin is deactivated
wp plugin status nestbyte-core

# Optional: Remove plugin files entirely
wp plugin delete nestbyte-core