CVE-2026-107447

Deferred Deferred - Pending Action

Contest Gallery Plugin Vote Manipulation via Header and Token

Publication date: 2026-10-21

Last updated on: 2026-10-21

Assigner: WPScan

Description

The Contest Gallery WordPress plugin before 34.0.1 does not reliably validate the visitor identity used to enforce its one-vote-per-entry restriction, trusting a client-supplied request header and an unbound client-generated token, which allows unauthenticated users to bypass the restriction and cast multiple votes for the same contest entry, inflating its vote total.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-21

Last Modified

2026-10-21

Generated

2026-11-10

AI Q&A

2026-10-22

EPSS Evaluated

2026-11-09

NVD

CVE-2026-107447

EUVD

EUVD-2026-107146

Affected Vendors & Products

Vendor	Product	Version / Range
Unknown	Contest Gallery	0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-290	This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

Attack-Flow Graph

Executive Summary

The Contest Gallery WordPress plugin before version 34.0.1 has a flaw where it does not properly validate voter identity for its one-vote-per-entry feature. It incorrectly trusts a client-supplied header and a client-generated token, allowing unauthenticated users to bypass restrictions and cast multiple votes for the same entry.

Detection Guidance

Check if the Contest Gallery WordPress plugin version is below 34.0.1. Inspect network traffic for repeated votes from the same entry with varying headers or tokens. Look for unusual vote patterns in contest entries.

Impact Analysis

This vulnerability allows attackers to inflate vote counts for contest entries by submitting multiple votes. It undermines the integrity of voting systems, potentially leading to unfair advantages for certain entries or users.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR or HIPAA as it involves vote manipulation in a WordPress plugin rather than data breaches or privacy violations. However, if vote counts are used for decisions affecting individuals (e.g., contests with prizes), inflated votes could lead to unfair outcomes or disputes, potentially causing secondary compliance issues depending on context.

Mitigation Strategies

Update the Contest Gallery plugin to version 34.0.1 or later immediately. Disable the plugin temporarily if an update is not immediately available. Monitor vote logs for suspicious activity.

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