CVE-2026-84223

Kirki 6.0.0 - 6.3.0 - Author+ Stored XSS via Unsanitized SVG Upload

Published Sep 20, 2026 CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Description
The Kirki WordPress plugin before 6.3.1 does not sanitize uploaded SVG files while making them uploadable site-wide, allowing users with author-level access and above to upload a file containing JavaScript which is then served from the site's own origin and runs in the session of anyone who opens it.

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': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/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
Weaknesses CWE-79
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
Description The Kirki WordPress plugin before 6.3.1 does not sanitize uploaded SVG files while making them uploadable site-wide, allowing users with author-level access and above to upload a file containing JavaScript which is then served from the site's own origin and runs in the session of anyone who opens it.
Title Kirki 6.0.0 - 6.3.0 - Author+ Stored XSS via Unsanitized SVG Upload
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Sep 20, 2026, 1:49 PM
Reserved
Sep 1, 2026, 11:50 AM
Status
Deferred
Published
Sep 20, 2026, 7:16 AM
Modified
Sep 21, 2026, 1:34 PM