CVE-2025-47559 is a critical security vulnerability classified under CWE-434, which pertains to the unrestricted upload of files with dangerous types. This vulnerability affects the RomanCode MapSVG product, specifically versions up to and including 8.5.32. The core issue lies in the insufficient validation or restriction on file types that users can upload through the MapSVG interface. This flaw enables an attacker with at least low-level privileges (PR:L) to upload malicious files, such as web shells, directly to the web server hosting the vulnerable MapSVG instance. The vulnerability requires no user interaction (UI:N) and can be exploited remotely over the network (AV:N) with low attack complexity (AC:L). The impact is severe and covers confidentiality, integrity, and availability (C:H/I:H/A:H), with the potential for complete system compromise. The scope is changed (S:C), indicating that the vulnerability affects resources beyond the initially vulnerable component, potentially impacting the entire web server environment. Although no public exploits are currently known in the wild, the high CVSS score of 9.9 underscores the critical nature of this vulnerability and the urgent need for remediation. The absence of patch links suggests that a fix may not yet be publicly available, increasing the risk for organizations still running affected versions. Attackers exploiting this vulnerability could deploy web shells, enabling persistent remote code execution, data exfiltration, lateral movement, and further compromise of internal networks.

For European organizations, the impact of CVE-2025-47559 is significant, especially for those relying on MapSVG for interactive mapping solutions on their websites or internal portals. Successful exploitation could lead to full server compromise, resulting in unauthorized access to sensitive data, disruption of services, and potential damage to organizational reputation. Critical sectors such as government, finance, healthcare, and infrastructure operators that use MapSVG or integrate it into their web platforms could face operational outages and data breaches. The ability to upload web shells facilitates persistent access for attackers, increasing the risk of advanced persistent threats (APTs) and data theft. Additionally, compromised servers could be leveraged to launch further attacks within the organization's network or against third parties. Given the vulnerability's remote exploitability without user interaction, the attack surface is broad, and automated exploitation attempts could rapidly increase once public exploits emerge. This elevates the urgency for European organizations to assess their exposure and implement mitigations promptly.

1. Immediate Inventory and Assessment: Identify all instances of MapSVG in use, including embedded or legacy deployments, to understand exposure. 2. Restrict File Uploads: Implement strict server-side validation to allow only safe file types and reject any executable or script files. 3. Apply Web Application Firewall (WAF) Rules: Deploy or update WAF signatures to detect and block attempts to upload web shells or suspicious files via MapSVG endpoints. 4. Principle of Least Privilege: Limit the privileges of users who can upload files to the minimum necessary, and consider disabling file upload features if not essential. 5. Network Segmentation: Isolate web servers running MapSVG from critical internal networks to contain potential breaches. 6. Monitor Logs and Network Traffic: Set up alerts for unusual file uploads, web shell signatures, or anomalous outbound connections from web servers. 7. Patch Management: Monitor RomanCode advisories closely and apply patches immediately once available. 8. Incident Response Preparedness: Prepare for rapid containment and remediation in case of exploitation, including backup and recovery plans. 9. Disable Unused Features: If MapSVG’s file upload functionality is not required, disable it to reduce attack surface. 10. Use Content Security Policy (CSP) and other browser security headers to limit the impact of potential client-side attacks stemming from server compromise.