CVE-2026-94263 Advanced Custom Fields CVE debrief

Who should care

WordPress site administrators and security teams using affected plugin versions should review and update plugin versions to 0.9.2.8 or later, verify shortcode processing settings in front-end forms, and monitor form submissions and server-side activity to prevent potential server-side code execution.

Why it matters

CVE-2026-94263 vulnerability in Advanced Custom Fields: Extended and Advanced Custom Fields: Extended PRO plugins requires verification of plugin versions and shortcode processing settings to prevent potential server-side code execution

• Unauthenticated shortcode execution requires verification
• Potential for server-side code execution via form submissions
• Need to verify plugin version and shortcode processing settings

Technical summary

Unauthenticated arbitrary shortcode execution vulnerability in Advanced Custom Fields: Extended and Advanced Custom Fields: Extended PRO plugins, versions 0.9.2.4 to 0.9.2.7. The vulnerability allows unauthenticated visitors to execute arbitrary shortcodes server-side when submitting a form with a stored configuration that does not have the relevant setting to disable shortcode processing. This issue requires verification of plugin versions and shortcode processing settings in front-end forms to prevent potential server-side code execution.

Defensive priority

Medium priority for WordPress site administrators and security teams

Recommended defensive actions

• Review and update plugin versions to 0.9.2.8 or later
• Verify shortcode processing settings in front-end forms
• Monitor form submissions and server-side activity
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

Official CVE Program and NVD records confirm vulnerability in Advanced Custom Fields: Extended and Advanced Custom Fields: Extended PRO plugins, versions 0.9.2.4 to 0.9.2.7. The CVE record was published on 2026-10-23T10:44:12.568Z and has not been modified since then. There are no details on known or unknown affected scope beyond the specified plugin versions. Defenders should verify plugin versions and shortcode processing settings in front-end forms to prevent potential server-side code execution.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.