Code Execution Vulnerability in Kirki Plugin for WordPress
CVE-2026-84220

4.8MEDIUM

Key Information:

Vendor

WordPress
Status
Kirki
Vendor
CVE Published:
9 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-84220?

The Kirki WordPress plugin prior to version 6.3.2 is vulnerable to a serious issue where it allows shortcodes in comments to be executed. This happens because the plugin renders comments without properly filtering or moderating them. As a result, unauthenticated users can exploit this vulnerability to run arbitrary shortcodes on the site. Additionally, this vulnerability exposes private custom fields of the viewed page, further compromising the security and integrity of WordPress sites using the affected version of the Kirki plugin.

Affected Version(s)

Kirki 0 < 6.3.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-84220 - Proof of Concept

References

https://wpscan.com/vulnerability/e5cfd004-dd57-4d42-858c-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Karthik Ramakrishnan
WPScan
.