What’s Vulnerable › Vulnerabilities

CVE-2026-34027: Upload restriction bypass in Wertheim SafeController Software allows authenticated users to upload arbitrary files

• Severity: medium (CVSS 5.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-15 · updated 2026-10-25
• Weakness: CWE-434

Description

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.

Affected products

• Wertheim GmbH Wertheim SafeController Software for VAULT ROOMS (Safe Deposit Locker System): Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014

References

• https://r.sec-consult.com/wertheim
• https://wertheim-safes.com/safe-deposit-box-management/

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