CVE-2026-100506

HIGH 7.2

WordPress WP Spell Check plugin <= 12.1 - PHP Object Injection vulnerability

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-502
Vendor	wp spell check
Product	wp spell check
Published	Oct 5, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

WP Spell Check / WP Spell Check

0 ≤ 12.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/wp-spell-check/vulnerability/wordpress-wp-spell-check-plugin-12-1-php-object-injection-vulnerability?_s_id=cve

Credits

Ananda Dhakal (Patchstack)