CVE-2026-27438
Received Received - Intake
Deserialization Object Injection in ThemeREX Kingler

Publication date: 2026-03-05

Last updated on: 2026-03-09

Assigner: Patchstack

Description
Deserialization of Untrusted Data vulnerability in ThemeREX Kingler kingler allows Object Injection.This issue affects Kingler: from n/a through <= 1.7.
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Meta Information
Published
2026-03-05
Last Modified
2026-03-09
Generated
2026-06-16
AI Q&A
2026-03-05
EPSS Evaluated
2026-06-14
NVD
CVE-2026-27438
EUVD
EUVD-2026-9649
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
themerex kingler to 1.7 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
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Executive Summary

CVE-2026-27438 is a high-priority PHP Object Injection vulnerability in the WordPress Kingler Theme versions up to and including 1.7.

This vulnerability allows unauthenticated attackers to perform PHP Object Injection, which can lead to code injection, SQL injection, path traversal, denial of service, and other attacks if a suitable Property Oriented Programming (POP) chain is available.

It is classified under OWASP Top 10 A3: Injection and has a CVSS severity score of 9.8, indicating it is highly dangerous and likely to be exploited.

Impact Analysis

This vulnerability can have severe impacts including unauthorized code execution, data breaches through SQL injection, unauthorized file access via path traversal, and denial of service attacks.

Since the vulnerability requires no privileges to exploit, attackers can easily compromise affected websites running the vulnerable Kingler theme.

Without an official patch, the risk remains high, but mitigation rules are available to block attacks targeting this vulnerability temporarily.

Compliance Impact

I don't know

Detection Guidance

There is no specific detection command or method provided for this vulnerability in the available resources.

Mitigation Strategies

Since no official patch is currently available for CVE-2026-27438, immediate mitigation involves applying the Patchstack mitigation rule designed to block attacks targeting this vulnerability.

Users are advised to implement this mitigation as soon as possible to protect their websites from potential exploitation.

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