---
id: CVE-2026-106603
title: >-
  Authorization Bypass Through User-Controlled Key vulnerability in Groundhogg
  HollerBox holler-box allows Exploiting Incorrectly Configured Access Control
  Security Levels.This issue affects HollerBox: from n/a through 2.3.14.
summary: >-
  Authorization Bypass Through User-Controlled Key vulnerability in Groundhogg
  HollerBox holler-box allows Exploiting Incorrectly Configured Access Control
  Security Levels.This issue affects HollerBox: from n/a through 2.3.14.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'
cwe:
  - CWE-639
vendor: Groundhogg
product: holler-box
affected:
  - holler-box <= 2.3.14
published: '2026-10-08'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T18:17:15.260'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-106603'
references:
  - url: >-
      https://patchstack.com/database/wordpress/plugin/holler-box/vulnerability/wordpress-hollerbox-plugin-2-3-14-insecure-direct-object-references-idor-vulnerability?_s_id=cve
    label: audit@patchstack.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-08T15:28:33.910449Z'
ingestedAt: '2026-10-08T12:39:48.761Z'
---

## Overview

Authorization Bypass Through User-Controlled Key vulnerability in Groundhogg HollerBox holler-box allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects HollerBox: from n/a through 2.3.14.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.