CVE-2026-78466
Received Received - Intake

Insecure Direct Object Reference in Fluent Boards Pro WordPress Plugin

Publication date: 2026-08-25

Last updated on: 2026-08-25

Assigner: Wordfence

Description
The Fluent Boards Pro plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.0.11 due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform an unauthorized action.

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Meta Information

Published
2026-08-25
Last Modified
2026-08-25
Generated
2026-08-25
AI Q&A
2026-08-25
EPSS Evaluated
N/A
NVD
CVE-2026-78466
EUVD
EUVD-2026-65298

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
fluentboards 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-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

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Executive Summary

The Fluent Boards Pro WordPress plugin has an Insecure Direct Object Reference vulnerability in versions up to 2.0.11. This flaw occurs because the plugin fails to validate a user-controlled key, allowing authenticated attackers with Subscriber-level access or higher to perform unauthorized actions.

Detection Guidance

Check WordPress installations for the Fluent Boards Pro plugin version 2.0.11 or lower. Review user access logs for Subscriber-level accounts performing unauthorized actions. Inspect plugin files for missing input validation on user-controlled keys.

Impact Analysis

An attacker with Subscriber access could exploit this to perform unauthorized actions within the plugin, potentially modifying project data, accessing sensitive information, or disrupting project management workflows.

Compliance Impact

The vulnerability may compromise data integrity and access controls, which could violate GDPR's data protection requirements or HIPAA's access management rules if sensitive project or user data is exposed or altered.

Mitigation Strategies

Update the Fluent Boards Pro plugin to the latest version. Restrict Subscriber-level access to only necessary users. Monitor for suspicious activity in user logs. Consider disabling the plugin temporarily if an update is unavailable.

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