CVE-2026-3785 is a SQL injection vulnerability identified in EasyCMS versions 1.0 through 1.6, specifically within the /RbacnodeAction.class.php file's Request Parameter Handler component. The vulnerability arises from improper sanitization of the _order parameter, which attackers can manipulate to inject arbitrary SQL commands remotely. This flaw allows an attacker with low privileges to execute unauthorized SQL queries, potentially leading to unauthorized data access, modification, or deletion. The attack vector is network-based with no user interaction required, increasing the risk of automated exploitation. Despite the vendor being notified early, no patches or official responses have been issued, and public exploit code is available, which could facilitate exploitation by threat actors. The vulnerability's CVSS 4.0 score is 5.3 (medium severity), reflecting the need for some privileges to exploit and limited impact on confidentiality, integrity, and availability. The absence of vendor patches necessitates alternative mitigation strategies such as input validation, access restrictions, and deployment of web application firewalls. Organizations relying on EasyCMS should prioritize vulnerability assessments and implement compensating controls to reduce exposure.

The SQL injection vulnerability in EasyCMS can have significant impacts on organizations using affected versions. Successful exploitation could allow attackers to access sensitive database information, modify or delete data, and potentially escalate privileges within the CMS environment. This compromises the confidentiality, integrity, and availability of the CMS and any data it manages, including user credentials, content, and configuration settings. Given the remote attack vector and availability of public exploits, there is an increased risk of automated attacks targeting vulnerable installations. Organizations may face data breaches, defacement, or service disruptions, which can damage reputation and incur regulatory penalties. The medium severity rating indicates that while exploitation requires some privileges, the potential damage to critical web infrastructure and data is non-trivial. Without vendor patches, the risk remains persistent until mitigations are applied.

1. Immediately restrict access to the vulnerable /RbacnodeAction.class.php endpoint and the _order parameter by implementing strict input validation and sanitization to block malicious SQL payloads. 2. Deploy a Web Application Firewall (WAF) with custom rules to detect and block SQL injection attempts targeting EasyCMS, focusing on the _order parameter. 3. Limit user privileges to the minimum necessary, especially for accounts that can interact with the vulnerable component, to reduce exploitation potential. 4. Conduct thorough code reviews and penetration testing on EasyCMS installations to identify and remediate injection points. 5. Monitor logs for unusual database queries or errors indicative of injection attempts. 6. If possible, migrate to alternative CMS platforms or versions not affected by this vulnerability until an official patch is released. 7. Engage with the vendor or community to encourage patch development and share threat intelligence. 8. Regularly back up CMS data and configurations to enable recovery in case of compromise.