What is CVE-2026-12720?

CVE-2026-12720 is a high-severity vulnerability in Kirki, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2026-07-31.

How severe is CVE-2026-12720?

High severity. CVSS v3 base score is 7.5 out of 10.

Deserialization in Kirki

CVE-2026-12720

The Kirki WordPress plugin before 6.0.13 does not restrict which classes may be instantiated when it deserialises data that unauthenticated users can store, leading to PHP Object Injection that is triggered when an administrator later rev…

Vulnerability class: Insecure Deserialization

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Unknown Kirki — versions 0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-12720?: CVE-2026-12720 is a high-severity vulnerability in Kirki, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2026-07-31.
How severe is CVE-2026-12720?: High severity. CVSS v3 base score is 7.5 out of 10.