What is CVE-2026-70356?

CVE-2026-70356 is a critical-severity vulnerability in Toptech Systems Tms7, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.1/10. Published 2026-09-29.

How severe is CVE-2026-70356?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Arbitrary file upload in Toptech Systems Tms7

CVE-2026-70356

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.

Vulnerability class: Unrestricted File Upload

Published 2026-09-29.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Toptech Systems Tms7 — versions 7.6.3
Toptech Systems Tophat — versions 7.6.3

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

Frequently asked questions

What is CVE-2026-70356?: CVE-2026-70356 is a critical-severity vulnerability in Toptech Systems Tms7, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.1/10. Published 2026-09-29.
How severe is CVE-2026-70356?: Critical severity. CVSS v3 base score is 9.1 out of 10.