---
id: CVE-2026-70356
title: >-
  The TMS file upload endpoint fails to enforce server-side file type
  restrictions, allowing an attacker to upload and execute arbitrary PHP files
  on the web server.
summary: >-
  The TMS file upload endpoint fails to enforce server-side file type
  restrictions, allowing an attacker to upload and execute arbitrary PHP files
  on the web server.
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-434
vendor: Toptech Systems
product: TMS7
affected:
  - TMS7 7.6.3
  - TopHAT 7.6.3
published: '2026-09-29'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T22:18:16.140'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-70356'
references:
  - url: >-
      https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-272-02.json
    label: ics-cert@hq.dhs.gov
  - url: 'https://www.cisa.gov/news-events/ics-advisories/icsa-26-272-02'
    label: ics-cert@hq.dhs.gov
  - url: 'https://www.toptech.com/blog/tms7-version-7-8-strengthens-security'
    label: ics-cert@hq.dhs.gov
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-29T21:49:08.270Z'
---

## Overview

The TMS file upload endpoint fails to enforce server-side file type restrictions, allowing an attacker to upload and execute arbitrary PHP files on the web server.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.