What is CVE-2026-66657?

CVE-2026-66657 is a high-severity vulnerability in Mikado-themes Biagiotti Core, classified under PHP Remote File Inclusion. CVSS score: 8.1/10. Published 2026-08-13.

How severe is CVE-2026-66657?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Mikado-themes Biagiotti Core

CVE-2026-66657

Unauthenticated Local File Inclusion in Biagiotti Core <= 2.1.1 versions.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mikado-themes Biagiotti Core — versions n/a

Weakness classification (CWE)

CWE-98 — PHP Remote File Inclusion

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-66657?: CVE-2026-66657 is a high-severity vulnerability in Mikado-themes Biagiotti Core, classified under PHP Remote File Inclusion. CVSS score: 8.1/10. Published 2026-08-13.
How severe is CVE-2026-66657?: High severity. CVSS v3 base score is 8.1 out of 10.