CVE-2025-30085 is a critical remote code execution (RCE) vulnerability affecting the RSForm!Pro component versions 3.0.0 through 3.3.14 for the Joomla content management system. The vulnerability stems from improper control over code generation (CWE-94), specifically within the submission export feature of the component. This flaw allows an attacker with administrative privileges to execute arbitrary code on the affected system without requiring user interaction. The vulnerability is exploitable remotely over the network (AV:N) with low attack complexity (AC:L) and does not require additional authentication beyond administrative access (PR:H). The CVSS 4.0 base score is 9.2, indicating a critical severity level. The vulnerability impacts confidentiality, integrity, and availability, with high scope and impact metrics. Although no known exploits are currently observed in the wild, the potential for exploitation is significant given the nature of the flaw and the widespread use of Joomla and RSForm!Pro in web applications. The vulnerability arises because the export feature improperly sanitizes or controls code generation inputs, enabling code injection attacks that can lead to full system compromise. Since administrative access is required, the threat is primarily to environments where attackers have already gained elevated privileges or where administrative credentials are weak or compromised. The flaw highlights the importance of secure coding practices in plugin components and the risks posed by third-party extensions in CMS platforms.

For European organizations, this vulnerability poses a substantial risk, especially for those relying on Joomla-based websites and applications integrated with the RSForm!Pro component. Successful exploitation could lead to complete system compromise, data breaches, defacement of websites, or use of compromised servers as pivot points for further attacks within corporate networks. Confidential customer data, intellectual property, and operational continuity could be severely affected. Given the criticality and ease of exploitation once administrative access is obtained, organizations face risks of reputational damage, regulatory penalties under GDPR for data breaches, and potential service disruptions. The vulnerability also increases the attack surface for supply chain attacks if exploited in managed service providers or hosting environments serving multiple clients. Since administrative access is required, the impact is amplified in environments with weak access controls or where attackers have already escalated privileges. The vulnerability could also be leveraged in targeted attacks against European entities with high-value web assets, including government, finance, healthcare, and e-commerce sectors.

1. Immediate patching: Organizations should update RSForm!Pro to a version beyond 3.3.14 once a patch is released by rsjoomla.com. If no patch is available yet, consider disabling the submission export feature or the RSForm!Pro component entirely until a fix is applied. 2. Restrict administrative access: Enforce strict access controls and multi-factor authentication (MFA) for Joomla administrative accounts to prevent unauthorized access. 3. Monitor and audit: Implement detailed logging and monitoring of administrative actions and export feature usage to detect suspicious activities promptly. 4. Harden Joomla installations: Limit plugin installations to trusted sources, regularly review installed extensions, and remove unused or outdated components. 5. Web application firewall (WAF): Deploy WAF rules tailored to detect and block suspicious code injection attempts targeting the export functionality. 6. Network segmentation: Isolate Joomla servers from critical internal networks to limit lateral movement if compromise occurs. 7. Incident response readiness: Prepare for rapid incident response including forensic analysis and recovery plans in case of exploitation. 8. Security awareness: Train administrators on the risks of privilege misuse and the importance of credential security to reduce the likelihood of privilege escalation.