---
id: CVE-2026-100506
title: >-
  Deserialization of Untrusted Data vulnerability in WP Spell Check WP Spell
  Check wp-spell-check allows Object Injection.This issue affects WP Spell
  Check: from n/a through 12.1.
summary: >-
  Deserialization of Untrusted Data vulnerability in WP Spell Check WP Spell
  Check wp-spell-check allows Object Injection.This issue affects WP Spell
  Check: from n/a through 12.1.
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-502
vendor: WP Spell Check
product: wp-spell-check
affected:
  - wp-spell-check <= 12.1
published: '2026-10-05'
updated: '2026-10-05'
sourceUpdated: '2026-10-05T20:17:03.760'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100506'
references:
  - url: >-
      https://patchstack.com/database/wordpress/plugin/wp-spell-check/vulnerability/wordpress-wp-spell-check-plugin-12-1-php-object-injection-vulnerability?_s_id=cve
    label: audit@patchstack.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-05T19:31:00.000Z'
---

## Overview

Deserialization of Untrusted Data vulnerability in WP Spell Check WP Spell Check wp-spell-check allows Object Injection.This issue affects WP Spell Check: from n/a through 12.1.

## Remediation

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