What is CVE-2026-39474?

CVE-2026-39474 is a high-severity vulnerability in Metaphorcreations Post Duplicator, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-06-15.

How severe is CVE-2026-39474?

High severity. CVSS v3 base score is 8.8 out of 10.

Deserialization in Metaphorcreations Post Duplicator

CVE-2026-39474

Contributor PHP Object Injection in Post Duplicator <= 3.0.10 versions.

Vulnerability class: Insecure Deserialization

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Metaphorcreations Post Duplicator — versions n/a

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-39474?: CVE-2026-39474 is a high-severity vulnerability in Metaphorcreations Post Duplicator, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-06-15.
How severe is CVE-2026-39474?: High severity. CVSS v3 base score is 8.8 out of 10.