---
id: "CVE-2026-112861"
kind: "vulnerability"
aliases: ["CVE-2026-112861"]
title: "Participants Database WordPress plugin: authorization bypass through user-controlled key"
severity: "medium"
cvss: 6.3
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "participants-database", "self-hosted", "wordpress"]
not_affected_if: ["plugin-not-installed", "plugin-updated"]
published_at: "2026-10-20T18:17:18+00:00"
first_seen_at: "2026-10-23T21:57:21+00:00"
updated_at: "2026-10-25T04:01:36+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112861", "first_seen_at": "2026-10-23T21:57:21+00:00"}]
---

# Participants Database WordPress plugin: authorization bypass through user-controlled key

The Participants Database WordPress plugin by xnau webdesign has an authorization bypass where a user-controlled key defeats access control settings. An attacker can reach participant records or actions their role should not allow.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed plugin version in the WordPress admin Plugins screen or the `participants-database` plugin header; the sources say the flaw affects versions through `2.7.8.5`.
- Review the plugin's access control security level settings for participant data.

## Fix

- Update the Participants Database plugin to a version newer than `2.7.8.5`; the sources do not name the exact fixed release, so check the plugin's changelog.

## Timeline

- 2026-10-23T21:57:21+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112861

## From the sources

Authorization Bypass Through User-Controlled Key vulnerability in xnau webdesign Participants Database participants-database allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Participants Database: from n/a through 2.7.8.5.

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