CVE-2026-84223

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

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.

Affected

Kirki

CVSS v3.1 CNA

6.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

EPSS

0.43% chance of exploitation in the next 30 days, 36th percentile

Published

2026-09-20

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/02ed6d31-84f3-4723-8b49-ddb00c7db7d3/

References

• CVE Record
• NVD entry