CVE-2026-16297
Received Received - Intake

PHP Object Injection in Clearfy Cache WordPress Plugin

Publication date: 2026-08-03

Last updated on: 2026-08-03

Assigner: WPScan

Description
The Clearfy Cache WordPress plugin before 2.4.3 does not restrict the classes allowed when unserializing settings-import data, allowing users with administrator access to perform PHP Object Injection attacks, which may lead to remote code execution when a suitable gadget chain is present in the environment.

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Meta Information

Published
2026-08-03
Last Modified
2026-08-03
Generated
2026-08-03
AI Q&A
2026-08-03
EPSS Evaluated
N/A
NVD
CVE-2026-16297
EUVD
EUVD-2026-52180

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
clearfy clearfy_cache to 2.4.3 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is in the Clearfy Cache WordPress plugin before version 2.4.3. It allows administrator users to import settings that include unserialized data without proper restrictions on allowed classes. This can lead to PHP Object Injection attacks, where malicious code is executed if a suitable gadget chain exists in the environment.

Impact Analysis

If you are an administrator using the affected plugin version, an attacker with administrator access could exploit this to execute arbitrary PHP code on your server. This may allow them to take full control of your WordPress site, steal data, or perform other malicious actions.

Compliance Impact

This vulnerability could lead to unauthorized access and data breaches, violating GDPR and HIPAA requirements for data protection and security. Organizations may face fines or penalties if they fail to address this issue and a breach occurs.

Mitigation Strategies

Update the Clearfy Cache WordPress plugin to version 2.4.3 or later to address the PHP Object Injection vulnerability.

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