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OpenAdvisories
High · 7.5 CVE-2026-110813 EUVD-2026-117909GHSA-f3rw-vqjj-25wh

Advanced Custom Fields (ACF®) < 6.8.11 - Unauthenticated Stored XSS via HTML Attribute Name Injection

Published Nov 6, 2026 · Updated Nov 6, 2026 · Assigned by WPScan

Description

The Advanced Custom Fields (ACF®) WordPress plugin before 6.8.11 does not properly sanitize a stored field definition that can be modified through its comment handling, allowing unauthenticated users to inject a payload that is emitted as an HTML attribute name and executed as JavaScript in the browser of any visitor or administrator who views a page rendering the affected field.

Affected products

VendorProductAffectedFixed
— Advanced Custom Fields (ACF®) < 6.8.11 6.8.11

References