Description
Unauthenticated PHP Object Injection in Kicker <= 2.2.1 versions.
Published: 2026-10-10
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Patch Immediately
AI Analysis

Impact

The Kicker theme for WordPress—versions 2.2.1 and earlier—contains an unauthenticated PHP Object Injection flaw (CWE‑502). An attacker can supply crafted serialized PHP data that is unserialized by the theme without authentication, leading to arbitrary code execution on the web server and full compromise of the affected WordPress site.

Affected Systems

Axiomthemes’ Kicker theme is vulnerable in all releases up to and including version 2.2.1. Any WordPress site deploying one of those versions is at risk.

Risk and Exploitability

The CVSS score of 9.8 places this issue in the critical category. EPSS information is not provided and the vulnerability is not listed in the CISA KEV catalog, yet the high severity and lack of authentication and the public nature of WordPress sites mean an attacker with internet access can easily exploit the flaw by sending a crafted POST request to the theme’s PHP endpoint. The exploit path requires no special privileges and can be executed remotely from any network able to reach the site.

Generated by OpenCVE AI on October 10, 2026 at 21:21 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade the Kicker theme to the latest released version that removes the PHP object injection code, or uninstall the theme if an upgrade is unavailable.
  • As a temporary measure, completely disable or delete the Kicker theme from the WordPress installation to eliminate the vulnerable code path.
  • Apply a web application firewall rule that blocks or sanitizes requests containing serialized PHP payloads, such as filtering the $_POST data for common serialization strings or blocking the specific endpoint used by the theme.

Generated by OpenCVE AI on October 10, 2026 at 21:21 UTC.

Tracking

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Advisories

No advisories yet.

History

Sun, 11 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Sat, 10 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
Description Unauthenticated PHP Object Injection in Kicker <= 2.2.1 versions.
Title WordPress Kicker theme <= 2.2.1 - PHP Object Injection vulnerability
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Patchstack

Published:

Updated: 2026-10-11T11:53:09.437Z

Reserved: 2026-07-27T13:59:48.658Z

Link: CVE-2026-66569

cve-icon Vulnrichment

Updated: 2026-10-11T11:49:19.437Z

cve-icon NVD

Status : Deferred

Published: 2026-10-10T20:16:46.467

Modified: 2026-10-13T13:29:12.567

Link: CVE-2026-66569

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-10T21:30:17Z

Weaknesses
  • CWE-502

    Deserialization of Untrusted Data