High 7.2Published Oct 5, 2026

CVE-2026-100506WordPress WP Spell Check plugin <= 12.1 - PHP Object Injection vulnerability

Updated under an hour ago (2026-10-19 09:10 UTC)

Does this affect you?

It affects WP Spell Check. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.37%, higher than 29% of scored CVEs.

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Every CVE for WP Spell Check

Exploited in the last 30 days

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.

CVSS: 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-502
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.37% (percentile 29)
Assigned by: Patchstack
NVD analysis: Deferred
Record last updated: Oct 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

WP Spell Check WP Spell Check wp_spell_check:wp_spell_check (from the name)	through 12.1; fixed at 12.2	CNA record

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.