Fluent Boards Pro <= 2.0.11 - Authenticated (Subscriber+) Insecure Direct Object Reference (CVE-2026-78466) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-78466

Fluent Boards Pro <= 2.0.11 - Authenticated (Subscriber+) Insecure Direct Object Reference

Answer in brief

CVE-2026-78466 records a Unknown severity vulnerability in Fluent Boards Pro <= 2.0.11 - Authenticated (Subscriber+) Insecure Direct Object Reference. The current sources do not mark it as known exploited. The current feed maps Fluent Boars/Fluent Boards Pro (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 25, 2026Updated Aug 25, 2026Source checked Aug 25, 2026First seen by HOL Aug 25, 2026Material review Aug 25, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Fluent Boars/Fluent Boards Pro (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Fluent Boars/Fluent Boards Progeneric	0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Fluent Boars/Fluent Boards Pro.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 25, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.