What is CVE-2026-27414?

CVE-2026-27414 is a high-severity vulnerability in Fuelthemes Werkstatt, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-07-02.

How severe is CVE-2026-27414?

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

Deserialization in Fuelthemes Werkstatt

CVE-2026-27414

Contributor PHP Object Injection in Werkstatt <= 4.8.3 versions.

Vulnerability class: Insecure Deserialization

Published 2026-07-02 · last modified 2026-07-02.

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.

EPSS exploit prediction

EPSS: 0.005 (41.9th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Fuelthemes Werkstatt

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

patchstack.com/database/wordpress/theme/werkstatt/vulnerability/wordpress-werks… (vdb-entry)

Frequently asked questions

What is CVE-2026-27414?: CVE-2026-27414 is a high-severity vulnerability in Fuelthemes Werkstatt, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-07-02.
How severe is CVE-2026-27414?: High severity. CVSS v3 base score is 8.8 out of 10.