Arbitrary file upload in SMA Sunny Portal



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-0731
CWE-ID CWE-434
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Sunny Portal
Client/Desktop applications / Other client software

Vendor SMA Solar Technology AG

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Arbitrary file upload

EUVDB-ID: #VU105920

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-0731

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload. A remote attacker can upload a .aspx file instead of a PV system picture through the demo account and execute it on the server.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Sunny Portal: before 19.12.2024

CPE2.3 External links

https://cert.vde.com/en/advisories/VDE-2025-012
https://www.cisa.gov/news-events/ics-advisories/icsa-25-079-04


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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