CVE-2026-28554
Received Received - Intake

Missing Authorization in wpForo 2.4.14 Allows Post Moderation Bypass

Publication date: 2026-02-28

Last updated on: 2026-03-05

Assigner: VulnCheck

Description
wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to approve or unapprove any forum post via the wpforo_approve_ajax AJAX handler. Attackers exploit the nonce-only check by submitting a valid nonce with an arbitrary post ID to bypass moderation controls entirely.

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Meta Information

Published
2026-02-28
Last Modified
2026-03-05
Generated
2026-07-06
AI Q&A
2026-03-01
EPSS Evaluated
2026-07-05
NVD
CVE-2026-28554
EUVD
EUVD-2026-9103

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
gvectors wpforo_forum From 2.4.0 (inc) to 2.4.16 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

The vulnerability in wpForo Forum 2.4.14 is a missing authorization issue that allows authenticated subscribers to approve or unapprove any forum post. This happens through the wpforo_approve_ajax AJAX handler, which only checks for a valid nonce but does not verify if the user has the proper permissions. Attackers can exploit this by submitting a valid nonce along with any post ID, effectively bypassing moderation controls.

Impact Analysis

This vulnerability can impact you by allowing unauthorized users with subscriber-level access to manipulate forum posts' approval status. They can approve or unapprove posts without proper moderation, potentially leading to inappropriate or harmful content being displayed or legitimate content being hidden. This undermines the integrity and trustworthiness of the forum's content moderation.

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