CVE-2026-78276
Received Received - Intake

Editor PHP Object Injection in Fluent Boards Pro

Publication date: 2026-08-27

Last updated on: 2026-08-27

Assigner: Patchstack

Description
Editor PHP Object Injection in Fluent Boards Pro <= 2.0.11 versions.

CVSS Scores

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Meta Information

Published
2026-08-27
Last Modified
2026-08-27
Generated
2026-08-27
AI Q&A
2026-08-27
EPSS Evaluated
N/A
NVD
CVE-2026-78276
EUVD
EUVD-2026-66939

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
fluent_boards_pro fluent_boards_pro to 2.0.11 (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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Executive Summary

This is a PHP Object Injection vulnerability in the Fluent Boards Pro WordPress plugin versions 2.0.11 and below. It allows attackers to inject malicious PHP objects that could lead to code execution, SQL injection, or other attacks if a suitable POP chain exists.

Detection Guidance

Detecting this vulnerability requires checking if the Fluent Boards Pro plugin version 2.0.11 or below is installed on your WordPress site. You can use commands like 'wp plugin list' in WordPress CLI or check the plugin version via the WordPress admin dashboard under Plugins. Additionally, monitor for unusual activity such as unexpected code execution or file modifications.

Impact Analysis

Attackers could exploit this to execute arbitrary code, steal data, modify databases, or disrupt services on your website. The CVSS score of 7.2 indicates a high risk of exploitation in mass campaigns targeting many sites.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR or HIPAA requirements for data protection and integrity. Non-compliance risks include legal penalties and reputational damage.

Mitigation Strategies

Immediately update the Fluent Boards Pro plugin to version 2.0.12 or later. If updating is not possible, apply the mitigation rule provided by Patchstack to block attacks until the update is applied. Contact your hosting provider or web developer for assistance if needed.

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