High severity · published Sep 6, 2026
CVE-2026-84219
Kirki 6.2.1 - 6.2.5 - Unauthenticated Stored XSS via HTML Entity Decoding
7.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KI
Kirki ·
6.2.1 before 6.3.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-84219
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-84219
wpscan.com
https://wpscan.com/vulnerability/e95bd1e3-6f61-423f-add6-519e1ca7bf66/
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