SMA Solar Technology AG Sunny WebBox CVE-2019-13529 Cross Site Request Forgery Vulnerability



Date Discovered

October 8, 2019


SMA Solar Technology AG Sunny WebBox is prone to a cross-site request-forgery vulnerability. An attacker can exploit this issue to perform certain unauthorized actions and gain access to the affected application. Other attacks are also possible. Sunny WebBox versions 1.6 and prior are vulnerable.

Technologies Affected

  • SMA Solar Technology AG Sunny WebBox 1.40
  • SMA Solar Technology AG Sunny WebBox 1.41
  • SMA Solar Technology AG Sunny WebBox 1.42
  • SMA Solar Technology AG Sunny WebBox 1.43
  • SMA Solar Technology AG Sunny WebBox 1.44
  • SMA Solar Technology AG Sunny WebBox 1.45
  • SMA Solar Technology AG Sunny WebBox 1.46
  • SMA Solar Technology AG Sunny WebBox 1.6


Block external access at the network boundary, unless external parties require service.
Filter access to the affected computer at the network boundary if global access isn't needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.

Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to detect and block attacks and anomalous activity such as unexpected traffic. This may indicate exploit attempts.

Do not follow links provided by unknown or untrusted sources.
Web users should be cautious about following links to sites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.

Currently, we are not aware of any vendor-supplied patches. If you feel we are in error or are aware of more recent information, please mail us at:



Borja Merino and Eduardo Villaverde of the Technical Inspection Laboratory of the Mining School (University of León)

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