CVE-2025-10267 is a vulnerability identified in the NUP Portal product developed by NewType Infortech. The core issue is a Missing Authentication vulnerability (CWE-306) in a critical function of the portal that allows unauthenticated remote attackers to upload files directly to the server. This means that the affected function does not verify the identity or permissions of the user attempting to upload files. If an attacker can bypass the file extension restrictions implemented by the portal, they could upload malicious files such as webshells. A webshell is a script that enables remote command execution on the server, effectively giving the attacker control over the server environment. The vulnerability is exploitable over the network without requiring any authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/AT:N/PR:N/UI:N). The CVSS score of 6.9 (medium severity) reflects the moderate impact primarily due to the limited integrity impact (VI:L) and no direct impact on confidentiality or availability. However, the ability to upload and execute arbitrary code can lead to significant downstream consequences including data compromise, lateral movement, and persistent access. No patches or known exploits in the wild have been reported at the time of publication. The affected version is listed as "0," which likely indicates an initial or early release version of the NUP Portal. The vulnerability is critical because it affects a core security control—authentication—and allows unauthenticated remote code execution potential through file upload abuse.

For European organizations using the NUP Portal by NewType Infortech, this vulnerability poses a significant risk. Successful exploitation could lead to unauthorized access to sensitive data, disruption of services, and potential compromise of internal networks. Given that the vulnerability allows unauthenticated remote file uploads, attackers could deploy webshells to maintain persistent access, escalate privileges, and move laterally within the network. This could result in data breaches, intellectual property theft, or ransomware deployment. The impact is particularly concerning for sectors with strict data protection regulations such as finance, healthcare, and government institutions in Europe. Additionally, organizations relying on the NUP Portal for critical business functions may face operational disruptions. The lack of authentication on a critical function undermines trust in the application’s security posture and could lead to reputational damage and regulatory penalties under GDPR if personal data is compromised.

1. Immediate mitigation should include disabling or restricting the vulnerable file upload functionality until a patch is available. 2. Implement strict server-side validation of uploaded files beyond just file extension checks, including MIME type verification and content inspection to prevent webshell uploads. 3. Introduce authentication and authorization checks on all critical functions, especially file uploads, to ensure only legitimate users can perform these actions. 4. Employ web application firewalls (WAFs) with rules to detect and block malicious file upload attempts and webshell signatures. 5. Monitor server logs and network traffic for unusual file upload activity or execution of unexpected scripts. 6. Conduct a thorough security review of the NUP Portal deployment and isolate it within segmented network zones to limit potential lateral movement. 7. Engage with NewType Infortech for official patches or updates and apply them promptly once available. 8. Educate administrators and users about the risks of unauthenticated access and enforce strong access controls around the portal.