A vulnerability was found in Seagate NAS OS 4.3.15.1. It has been classified as problematic. This affects an unknown code block of the component filebrowser. The manipulation as part of a File Name leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

Cross-site scripting in filebrowser in Seagate NAS OS version 4.3.15.1 allows attackers to execute JavaScript via uploaded file names.

The weakness was released 05/13/2019. This vulnerability is uniquely identified as CVE-2018-12299 since 06/13/2018. It is possible to initiate the attack remotely. The requirement for exploitation is a authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entries connected to this vulnerability are available at VDB-134605, VDB-134604, VDB-134603 and VDB-134602. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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• Seagate

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• NAS OS

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• 4.3.15.1

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