What is CVE-2026-100512?

CVE-2026-100512 is a critical-severity vulnerability in Hook & Filter Nested Pages, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-09-30.

How severe is CVE-2026-100512?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Deserialization in Hook & Filter Nested Pages

CVE-2026-100512

Contributor PHP Object Injection in Nested Pages <= 3.3.2 versions.

Vulnerability class: Insecure Deserialization

Published 2026-09-30 · last modified 2026-09-30.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/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

Hook & Filter Nested Pages

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

patchstack.com/database/wordpress/plugin/wp-nested-pages/vulnerability/wordpres… (vdb-entry)

Frequently asked questions

What is CVE-2026-100512?: CVE-2026-100512 is a critical-severity vulnerability in Hook & Filter Nested Pages, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-09-30.
How severe is CVE-2026-100512?: Critical severity. CVSS v3 base score is 9.8 out of 10.