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HIGH

CVE-2026-84219

CVSS v3

7.5

HIGH

EPSS Score

0.4 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

The Kirki WordPress plugin before 6.3.0 does not hold back every spelling of the HTML entities it decodes when rendering, allowing unauthenticated users to store JavaScript in a comment which then runs in the session of anyone viewing a page that displays it, including an administrator, and on every page of the site when its header or footer is built to show comments.

Technical details

Published
2026-09-06
Last Modified
2026-09-06

Frequently asked questions

What is CVE-2026-84219?

The Kirki WordPress plugin before 6.3.0 does not hold back every spelling of the HTML entities it decodes when rendering, allowing unauthenticated users to store JavaScript in a comment which then runs in the session of anyone viewing a page that displays it, including an administrator, and on every page of the site when its header or footer is built to show comments.

Is CVE-2026-84219 actively exploited?

Active exploitation of CVE-2026-84219 has not been confirmed. Its EPSS score was 0.4% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-84219?

CVE-2026-84219 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2026-84219 affecting your environment?

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