What is CVE-2026-94263?

CVE-2026-94263 is a medium-severity vulnerability in Advanced Custom Fields: Extended, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.8/10. Published 2026-10-23.

How severe is CVE-2026-94263?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Vulnerability in Advanced Custom Fields: Extended

CVE-2026-94263

The Advanced Custom Fields: Extended and Advanced Custom Fields: Extended PRO WordPress plugins from 0.9.2.4 to 0.9.2.7 do not consistently disable shortcode processing in the confirmation message of their front-end forms, allowing unauthenticated visitors to have arbitrary shortcodes executed server-side when they submit a form whose stored configuration does not carry the relevant setting.

Published 2026-10-23 · last modified 2026-10-23.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

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

Advanced Custom Fields: Extended
Advanced Custom Fields: Extended Pro

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

wpscan.com/vulnerability/52f1633a-21ae-4273-8f24-5c10c2a92a8b/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-94263?: CVE-2026-94263 is a medium-severity vulnerability in Advanced Custom Fields: Extended, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.8/10. Published 2026-10-23.
How severe is CVE-2026-94263?: Medium severity. CVSS v3 base score is 4.8 out of 10.