CVE-2026-27439
Received Received - Intake
Deserialization Vulnerability in ThemeREX Dentario Enables Object Injection

Publication date: 2026-03-05

Last updated on: 2026-03-06

Assigner: Patchstack

Description
Deserialization of Untrusted Data vulnerability in ThemeREX Dentario dentario allows Object Injection.This issue affects Dentario: from n/a through <= 1.5.
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Meta Information
Published
2026-03-05
Last Modified
2026-03-06
Generated
2026-06-16
AI Q&A
2026-03-05
EPSS Evaluated
2026-06-15
NVD
CVE-2026-27439
EUVD
EUVD-2026-9650
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
themerex dentario to 1.5 (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.
Attack-Flow Graph
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Detection Guidance

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Compliance Impact

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Impact Analysis

This vulnerability can have critical impacts including unauthorized code execution, database compromise through SQL injection, unauthorized file system access via path traversal, and denial of service conditions.

Because it allows unauthenticated attackers to exploit the system, it poses a high risk to the security and availability of affected websites.

The CVSS severity score of 9.8 indicates a critical risk with a high likelihood of exploitation.

Executive Summary

CVE-2026-27439 is a high-priority PHP Object Injection vulnerability found in the WordPress Dentario Theme versions up to and including 1.5.

This vulnerability allows unauthenticated attackers to exploit PHP Object Injection, which is classified under OWASP Top 10 A3: Injection.

If a suitable Property Oriented Programming (POP) chain is present, attackers can leverage this flaw to perform code injection, SQL injection, path traversal, denial of service, and other severe impacts.

Mitigation Strategies

[{'type': 'paragraph', 'content': 'CVE-2026-27439 is a critical PHP Object Injection vulnerability affecting the WordPress Dentario Theme up to version 1.5, with no official patch currently available.'}, {'type': 'paragraph', 'content': 'Immediate mitigation involves applying the Patchstack mitigation rule designed to block attacks targeting this vulnerability until an official patch is released.'}, {'type': 'paragraph', 'content': 'Users are strongly advised to implement this mitigation immediately to protect their websites from potential exploitation, which could lead to code injection, SQL injection, path traversal, denial of service, and other severe impacts.'}, {'type': 'paragraph', 'content': "Additionally, using Patchstack's services for automated vulnerability blocking and continuous security intelligence can help safeguard WordPress sites against such threats."}] [1]

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