---
title: "CVE-2026-75891: Kirki WordPress Plugin - Privilege Escalation"
description: "Kirki WordPress plugin <= 6.2.5 contains a privilege escalation caused by PHP object injection via deserialization in 'get-single-symbol' AJAX dispatcher due to missing capability check, letting authenticated attackers with Subscriber-level access inject objects and escalate privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-75891/
---

# CVE-2026-75891 Kirki WordPress Plugin - Privilege Escalation

Kirki WordPress plugin <= 6.2.5 contains a privilege escalation caused by PHP object injection via deserialization in 'get-single-symbol' AJAX dispatcher due to missing capability check, letting authenticated attackers with Subscriber-level access inject objects and escalate privileges.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.30% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-75891)

## Details

Type

Privilege Escalation

Impact

Privilege Escalation

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

27 October 2026

Updated

29 October 2026

Weakness

[CWE-502](https://cwe.mitre.org/data/definitions/502.html)

## Vendor fix

Update to a version later than 6.2.5 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-75891](https://nvd.nist.gov/vuln/detail/CVE-2026-75891)
- [https://plugins.trac.wordpress.org/changeset/3677965/kirki](https://plugins.trac.wordpress.org/changeset/3677965/kirki)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/aecfea73-97fc-48c3-bf1b-5314077739b5?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/aecfea73-97fc-48c3-bf1b-5314077739b5?source=cve)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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