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.
History

Sun, 20 Sep 2026 14:30:00 +0000

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'}


Sun, 20 Sep 2026 08:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79

Sun, 20 Sep 2026 08:00:00 +0000

Type Values Removed Values Added
First Time appeared Kirki
Kirki kirki
Wordpress
Wordpress wordpress
Vendors & Products Kirki
Kirki kirki
Wordpress
Wordpress wordpress

Sun, 20 Sep 2026 06:30:00 +0000

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

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2026-09-20T06:00:16.686Z

Updated: 2026-09-20T13:49:20.467Z

Reserved: 2026-09-01T11:50:32.830Z

Link: CVE-2026-84223

cve-icon Vulnrichment

Updated: 2026-09-20T13:48:58.503Z

cve-icon NVD

Status : Deferred

Published: 2026-09-20T07:16:50.200

Modified: 2026-09-21T13:34:57.127

Link: CVE-2026-84223

cve-icon Redhat

No data.