CVE-2026-84219 Details
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.
A stored cross-site scripting vulnerability has been identified in the Kirki WordPress plugin, affecting versions prior to 6.3.0. The issue arises because the plugin does not properly sanitize all variations of HTML entities when rendering comments. This flaw allows unauthenticated users to inject JavaScript into comments, which is then executed in the context of anyone viewing the page, including administrators. The injected script runs on every page of the site if the header or footer is configured to display comments.
Users are advised to update the Kirki WordPress plugin to version 6.3.0 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 6, 2026CISA-ADP
Assessed Sep 6, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://wpscan.com/vulnerability/e95bd1e3-6f61-423f-add6-519e1ca7bf66/ | [email protected] | AdvisoryExploitRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Kirki | >= 6.2.1, <= 6.2.5 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 6, 2026 | CVE Modified | CISA-ADP |
| Sep 6, 2026 | New CVE Received | [email protected] |
Volerion