What is CVE-2026-57658?

CVE-2026-57658 is a critical-severity vulnerability in Templatespare, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.1/10. Published 2026-06-26.

How severe is CVE-2026-57658?

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

Arbitrary file upload in Templatespare

CVE-2026-57658

Administrator Arbitrary File Upload in TemplateSpare <= 4.2.0 versions.

Vulnerability class: Unrestricted File Upload

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.

Affected products

Templatespare — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-57658?: CVE-2026-57658 is a critical-severity vulnerability in Templatespare, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.1/10. Published 2026-06-26.
How severe is CVE-2026-57658?: Critical severity. CVSS v3 base score is 9.1 out of 10.