CVE-2026-34027
Upload restriction bypass in Wertheim SafeController Software allows authenticated users to upload arbitrary files
- Published
- Updated
- Reserved
- Assigned by
- SEC-VLab
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| SEC-VLabCNA (assigner) | 4.0 | Medium5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N |
| NVDNVD · Deferred | 4.0 | Medium5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.30% · top 77% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
Wertheim GmbH · Wertheim SafeController Software for VAULT ROOMS (Safe Deposit Locker System)
- affected Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014
What to do
Solution: The vendor provides a patch which should be installed immediately. Specific fixed version information was not provided. Affected parties should contact the vendor to request the update.
Workaround: Restrict access to the SafeController web application and document upload functionality to authorized users and trusted network locations only. Enforce server-side validation of uploaded file extensions, MIME types, file signatures, and file content. Do not rely on client-supplied Content-Type headers for file validation. Store uploaded files outside of web-executable directories and ensure that uploaded content cannot be interpreted as server-side code. These measures should only be treated as interim risk reduction; the vendor-provided patch should be installed.
References (2)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-34027)Record last updated .