CVE-2026-94262 Advanced Custom Fields: Extended CVE debrief

Who should care

Defenders responsible for WordPress sites using Advanced Custom Fields: Extended or Advanced Custom Fields: Extended PRO should assess exposure and prioritize upgrading to version 0.9.2.8 or later.

Why it matters

CVE-2026-94262 allows unauthenticated non-administrator account takeover via front-end user update action in Advanced Custom Fields: Extended and Advanced Custom Fields: Extended PRO. Defenders should prioritize verifying exposure and upgrading vulnerable versions to prevent unauthorized account access.

• Unauthenticated visitors can overwrite non-administrator account credentials.
• Successful exploitation allows for unauthorized account access.
• Defenders must verify exposure and upgrade vulnerable versions.
• Monitoring for unauthorized account updates is necessary.

Technical summary

The Advanced Custom Fields: Extended WordPress plugin before 0.9.2.8 and Advanced Custom Fields: Extended PRO WordPress plugin before 0.9.2.8 do not verify that the requester is authorised to edit the targeted user account in the update-user action of its front-end Forms module. This vulnerability allows unauthenticated visitors to overwrite non-administrator account credentials, potentially leading to unauthorized account access. The issue arises when a site publishes a form whose user-update action maps its target to a visitor-submitted value rather than to the default current user. Defenders should prioritize verifying exposure and upgrading vulnerable versions to prevent unauthorized account access.

Defensive priority

Defenders should prioritize verifying exposure of Advanced Custom Fields: Extended and Advanced Custom Fields: Extended PRO versions 0.9.2.7 or earlier, and upgrading to version 0.9.2.8 or later.

Recommended defensive actions

• Verify exposure of Advanced Custom Fields: Extended and Advanced Custom Fields: Extended PRO versions 0.9.2.7 or earlier.
• Upgrade to version 0.9.2.8 or later.
• Monitor for unauthorized account updates.
• 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.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and source item provide details on the vulnerability in Advanced Custom Fields: Extended and Advanced Custom Fields: Extended PRO. The vulnerability allows unauthenticated visitors to overwrite non-administrator account credentials.

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.