Medium severity · published Sep 20, 2026
CVE-2026-84223
Kirki 6.0.0 - 6.3.0 - Author+ Stored XSS via Unsanitized SVG Upload
6.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KI
Kirki ·
6.0.0 before 6.3.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-84223
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-84223
wpscan.com
https://wpscan.com/vulnerability/02ed6d31-84f3-4723-8b49-ddb00c7db7d3/
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