SQL Injection in Kirki

CVE-2026-84221

The Kirki WordPress plugin before 6.3.0 does not escape a user-supplied identifier before using it in a SQL query, allowing users with editor-level access and above to append arbitrary SQL and read the contents of the database, including user credentials.

Vulnerability class: SQL Injection

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (32.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-84221: held from 0.002 to 0.004.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002

Affected products

  • Kirki

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-84221?
CVE-2026-84221 is a medium-severity vulnerability in Kirki, classified under SQL Injection. CVSS score: 6.8/10. Published 2026-09-05.
How severe is CVE-2026-84221?
Medium severity. CVSS v3 base score is 6.8 out of 10.