CVE-2026-84219

Kirki 6.2.1 - 6.2.5 - Unauthenticated Stored XSS via HTML Entity Decoding

Published Sep 6, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Kirki
Kirki kirki
Wordpress
Wordpress wordpress
Vendors & Products Kirki
Kirki kirki
Wordpress
Wordpress wordpress
Type Values Removed Values Added
Weaknesses CWE-79
Type Values Removed Values Added
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.
Title Kirki 6.2.1 - 6.2.5 - Unauthenticated Stored XSS via HTML Entity Decoding
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Sep 6, 2026, 10:44 AM
Reserved
Sep 1, 2026, 11:50 AM
Status
Deferred
Published
Sep 6, 2026, 7:16 AM
Modified
Sep 8, 2026, 7:09 PM