CVE-2025-12462: DobryCMS Blind SQLi Vulnerability

CVE-2025-12462 Overview

A critical Blind SQL Injection vulnerability has been identified in DobryCMS that allows remote unauthenticated attackers to inject SQL syntax into the URL path. This vulnerability enables attackers to extract sensitive database information, bypass authentication mechanisms, and potentially compromise the entire database backend without requiring any prior authentication.

Critical Impact

Unauthenticated remote attackers can exploit this Blind SQL Injection vulnerability to extract sensitive data from the database, including user credentials, personal information, and other confidential records stored within DobryCMS installations.

Affected Products

• DobryCMS versions prior to 8.0

Discovery Timeline

• 2026-03-02 - CVE-2025-12462 published to NVD
• 2026-03-02 - Last updated in NVD database

Technical Details for CVE-2025-12462

Vulnerability Analysis

This Blind SQL Injection vulnerability (CWE-89: Improper Neutralization of Special Elements used in an SQL Command) exists within the URL path handling mechanism of DobryCMS. The application fails to properly sanitize user-supplied input before incorporating it into SQL queries, allowing attackers to manipulate database operations through crafted URL requests.

Unlike standard SQL injection attacks where error messages or query results are directly visible, this is a Blind SQL Injection variant. Attackers must infer information about the database structure and contents through indirect means such as time-based delays or boolean-based responses. This makes the attack more sophisticated but equally dangerous, as it can be fully automated using tools like SQLMap.

The network-accessible nature of this vulnerability combined with the lack of authentication requirements significantly increases the risk exposure for affected installations. Successful exploitation could lead to complete database compromise, including extraction of administrative credentials, modification of application data, or deletion of critical records.

Root Cause

The root cause of this vulnerability stems from insufficient input validation and sanitization in the URL path parsing functionality of DobryCMS. User-controlled data from the URL path is directly concatenated or interpolated into SQL queries without proper parameterization or escaping. This allows specially crafted URL segments containing SQL metacharacters to alter the intended query logic and execute arbitrary SQL commands against the backend database.

Attack Vector

The attack vector is network-based and requires no authentication. An attacker can exploit this vulnerability by crafting malicious HTTP requests with SQL injection payloads embedded in the URL path. Since the vulnerability is of the blind type, attackers typically employ time-based or boolean-based inference techniques to extract data character by character from the database.

A typical attack scenario involves sending requests with conditional SQL statements that cause observable differences in the application's response time or behavior, allowing the attacker to deduce database contents through a series of iterative queries. Automated tools can accelerate this process, enabling complete database extraction within hours depending on the database size and network conditions.

Detection Methods for CVE-2025-12462

Indicators of Compromise

• Unusual URL patterns containing SQL keywords such as SELECT, UNION, OR, AND, SLEEP(), or WAITFOR DELAY
• HTTP requests with URL-encoded SQL metacharacters like %27 (single quote), %3B (semicolon), or %2D%2D (double dash comments)
• Abnormally long response times that may indicate time-based blind SQL injection attempts using SLEEP() or BENCHMARK() functions
• Multiple sequential requests from the same source with incrementally modified payloads typical of automated exploitation tools

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in URL paths and query parameters
• Implement database query logging and monitor for unusual query patterns, particularly those containing conditional statements or time delay functions
• Configure intrusion detection systems (IDS) with signatures for common SQL injection attack tools such as SQLMap
• Enable application-level logging to track all URL path requests and flag those containing suspicious characters or keywords

Monitoring Recommendations

• Monitor web server access logs for requests containing SQL injection indicators in the URL path
• Set up real-time alerts for database query anomalies, including unusually long query execution times
• Track authentication attempts and database access patterns for signs of credential extraction
• Implement rate limiting to detect and slow down automated exploitation attempts

How to Mitigate CVE-2025-12462

Immediate Actions Required

• Upgrade DobryCMS to version 8.0 or later where this vulnerability has been patched
• Implement a Web Application Firewall (WAF) with SQL injection protection rules as an immediate compensating control
• Review and audit database accounts to ensure principle of least privilege is enforced
• Consider temporarily restricting access to affected DobryCMS installations until patching is complete

Patch Information

This vulnerability has been addressed in DobryCMS versions above 8.0. Administrators should update to the latest available version to remediate this security issue. For detailed information about the vulnerability and patch, refer to the CERT Advisory on CVE-2025-12462.

Workarounds

• Deploy a Web Application Firewall (WAF) configured to block SQL injection patterns in URL paths as a temporary mitigation measure
• Implement network-level access controls to restrict access to DobryCMS installations from trusted IP addresses only
• Review and disable any non-essential URL routing features that may expose additional attack surface
• Consider placing the application behind a reverse proxy with input filtering capabilities

# Example WAF rule concept for ModSecurity (adjust for your environment)
# Block common SQL injection patterns in URL paths
SecRule REQUEST_URI "@rx (?i:(\%27)|(\')|(\-\-)|(\%23)|(#))" \
    "id:1001,phase:1,deny,status:403,msg:'Potential SQL Injection in URL'"