CVE-2026-3785 Overview
A SQL injection vulnerability has been identified in EasyCMS versions up to 1.6. The vulnerability exists in the /RbacnodeAction.class.php file within the Request Parameter Handler component. Improper sanitization of the _order parameter allows attackers to inject malicious SQL statements, potentially leading to unauthorized data access, modification, or deletion.
Critical Impact
Remote attackers with low-level privileges can exploit this SQL injection vulnerability to compromise database integrity and confidentiality. The vendor was contacted about this disclosure but did not respond.
Affected Products
- EasyCMS versions up to and including 1.6
- /RbacnodeAction.class.php Request Parameter Handler component
Discovery Timeline
- 2026-03-08 - CVE-2026-3785 published to NVD
- 2026-03-09 - Last updated in NVD database
Technical Details for CVE-2026-3785
Vulnerability Analysis
This vulnerability affects the Request Parameter Handler component within EasyCMS, specifically in the file /RbacnodeAction.class.php. The vulnerability arises from insufficient input validation when processing the _order parameter in HTTP requests. When user-supplied input is incorporated into SQL queries without proper sanitization or parameterization, it creates an injection point that attackers can exploit.
SQL injection vulnerabilities of this nature can enable attackers to execute arbitrary SQL commands against the backend database. This may result in unauthorized access to sensitive data, modification of database contents, or in severe cases, execution of administrative operations on the database server.
Root Cause
The root cause of CVE-2026-3785 is the improper neutralization of special elements used in SQL commands (CWE-89). The _order parameter in /RbacnodeAction.class.php does not implement adequate input validation or parameterized queries, allowing user-controlled data to be directly interpolated into SQL statements. This is also classified under the broader category of improper neutralization of special elements in output (CWE-74).
Attack Vector
The vulnerability can be exploited remotely over the network by authenticated users with low privileges. An attacker can craft malicious HTTP requests containing SQL injection payloads in the _order parameter. When the application processes these requests, the injected SQL code is executed against the database.
The attack requires no user interaction and can be conducted from any network location with access to the vulnerable EasyCMS instance. The exploit has been publicly disclosed, increasing the risk of active exploitation in the wild.
Detection Methods for CVE-2026-3785
Indicators of Compromise
- Unusual or malformed HTTP requests targeting /RbacnodeAction.class.php with suspicious _order parameter values
- Database query logs showing unexpected SQL syntax, particularly ORDER BY clause manipulation
- Failed login attempts followed by successful data exfiltration patterns
- Web application firewall alerts for SQL injection signatures in request parameters
Detection Strategies
- Implement web application firewall (WAF) rules to detect and block SQL injection patterns in the _order parameter
- Enable detailed logging for requests to /RbacnodeAction.class.php and monitor for injection attempts
- Deploy database activity monitoring to identify anomalous query patterns or unauthorized data access
- Use intrusion detection systems (IDS) configured with SQL injection detection signatures
Monitoring Recommendations
- Review web server access logs for requests containing SQL meta-characters (', ", --, ;, UNION, SELECT) in query parameters
- Monitor database server performance for unusual query execution times that may indicate data extraction attempts
- Establish baseline traffic patterns for EasyCMS and alert on deviations that may indicate exploitation
- Implement real-time alerting for any access to sensitive database tables from web application contexts
How to Mitigate CVE-2026-3785
Immediate Actions Required
- Restrict network access to EasyCMS installations to trusted IP addresses only until a patch is available
- Implement web application firewall rules to filter malicious input to the _order parameter
- Review and harden database user permissions to minimize potential impact of SQL injection
- Enable comprehensive logging on both the web server and database to capture potential exploitation attempts
Patch Information
No official patch is currently available from the vendor. According to the vulnerability disclosure, the vendor was contacted early about this issue but did not respond. Organizations using EasyCMS should monitor the GitHub Issue Discussion and VulDB entry for updates on available fixes or workarounds.
Workarounds
- Implement input validation at the application layer to sanitize the _order parameter before it reaches the database
- Deploy a reverse proxy or WAF to filter requests containing SQL injection payloads
- Consider temporarily disabling the affected functionality in /RbacnodeAction.class.php if not business-critical
- Migrate to an alternative CMS solution if vendor support remains unavailable
# Example WAF rule configuration for ModSecurity
SecRule ARGS:_order "@rx (?i)(\bunion\b|\bselect\b|\border\s+by\b.*\bcase\b|--|;)" \
"id:100001,phase:2,deny,status:403,log,msg:'SQL Injection attempt in _order parameter'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
