Is CVE-2026-70356 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-70356 being exploited in the wild.

How severe is CVE-2026-70356?

Critical severity, with a CVSS score of 9.1, published 29 September 2026.

Which products and versions are affected?

Toptech Systems TMS7 7.6.3; Toptech Systems TopHAT 7.6.3.

Is there a fix for CVE-2026-70356?

A patch was published on 2026-09-29: Fix available in version 7.8 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-70356 attacked?

It is attacked over the network.

Am I affected by CVE-2026-70356?

Check whether you run Toptech Systems TMS7 or Toptech Systems TopHAT at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-70356: Toptech TMS7 unrestricted file upload in file endpoint

CVE-2026-70356 · Severity: critical · CVSS 9.1 · Published 2026-09-29

Toptech TMS7 and TopHAT are industrial control system applications used to manage critical infrastructure operations. A file upload endpoint in these products fails to validate file types on the server side, allowing an authenticated attacker to upload and execute arbitrary PHP code, achieving complete system compromise including data theft, modification, and service disruption.

Technologies: Toptech Systems TMS7, Toptech Systems TopHAT. Vendors: Toptech Systems.

Quick answers

Is CVE-2026-70356 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-70356 being exploited in the wild.
How severe is CVE-2026-70356?: Critical severity, with a CVSS score of 9.1, published 29 September 2026.
Which products and versions are affected?: Toptech Systems TMS7 7.6.3; Toptech Systems TopHAT 7.6.3.
Is there a fix for CVE-2026-70356?: A patch was published on 2026-09-29: Fix available in version 7.8 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-70356 attacked?: It is attacked over the network.
Am I affected by CVE-2026-70356?: Check whether you run Toptech Systems TMS7 or Toptech Systems TopHAT at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The TMS file upload endpoint lacks server-side file type validation (CWE-434), permitting an authenticated attacker with high privileges to upload and execute malicious PHP files. An attacker who has already authenticated can directly execute arbitrary code on the web server, gaining full control over the application and underlying system. A patch is available in version 7.8.

Affected products

Toptech Systems TMS7 7.6.3
Toptech Systems TopHAT 7.6.3

Timeline

2026-09-29: disclosed
2026-09-29: patched: Fix available in version 7.8

References

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