What is CVE-2026-100506?

CVE-2026-100506 is a high-severity vulnerability in Wp Spell Check, classified under Deserialization of Untrusted Data. CVSS score: 7.2/10. Published 2026-10-05.

How severe is CVE-2026-100506?

High severity. CVSS v3 base score is 7.2 out of 10.

Deserialization in Wp Spell Check

CVE-2026-100506

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.

Vulnerability class: Insecure Deserialization

Published 2026-10-05 · last modified 2026-10-06.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Wp Spell Check

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

patchstack.com/database/wordpress/plugin/wp-spell-check/vulnerability/wordpress… (vdb-entry)

Frequently asked questions

What is CVE-2026-100506?: CVE-2026-100506 is a high-severity vulnerability in Wp Spell Check, classified under Deserialization of Untrusted Data. CVSS score: 7.2/10. Published 2026-10-05.
How severe is CVE-2026-100506?: High severity. CVSS v3 base score is 7.2 out of 10.