Wertheim SafeController Software for VAULT ROOMS 6.15.8328.28014 uploadcustomdocuments Content-Type unrestricted upload

Summaryinfo

A vulnerability classified as critical was found in Wertheim SafeController Software for VAULT ROOMS 6.15.8328.28014. Affected by this issue is some unknown functionality of the file /safe/contract/uploadcustomdocuments. Executing a manipulation of the argument Content-Type can lead to unrestricted upload. This vulnerability appears as CVE-2026-34027. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Wertheim SafeController Software for VAULT ROOMS 6.15.8328.28014. It has been declared as critical. This vulnerability affects an unknown function of the file /safe/contract/uploadcustomdocuments. The manipulation of the argument Content-Type with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014, contains insufficient server-side file type validation in the /safe/contract/uploadcustomdocuments endpoint. The application validates uploaded files based on the user-controlled HTTP Content-Type value and accepts the upload if this value contains an allowed string such as pdf, jpeg, tiff, or png. An authenticated attacker with any role or permission level can spoof the Content-Type value and upload arbitrary file content.

The weakness was presented by Christian Hager. The advisory is shared for download at wertheim-safes.com. This vulnerability was named CVE-2026-34027 since 03/25/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/15/2026). The MITRE ATT&CK project declares the attack technique as T1608.002.

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

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Productinfo

Vendor

• Wertheim

Name

• SafeController Software for VAULT ROOMS

Version

• 6.15.8328.28014

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