title: Advanced Custom Field Pro < 5.9.1 - Reflected Cross-Site Scripting (XSS)
description: The Advanced Custom Fields Pro WordPress plugin before 5.9.1 did not properly escape the generated update URL when outputting it in an attribute, leading to a reflected Cross-Site Scripting issue in the update settings page.
problem types: CWE-79 Cross-site Scripting (XSS)
affected:
{
product: Advanced Custom Fields Pro
vendor: Unknown
versions:
lessThan: 5.9.1, status: affected, version: 5.9.1, versionType: custom
}