Advanced Custom Fields (ACF®)

ACF helps customize WordPress with powerful, professional and intuitive fields. Proudly powering over 2 million sites, WordPress developers love ACF.

v6.8.4WP EngineUpdated 2026-06-10Added Mar 25, 20112m+ installs90% rating36% support resolved
23
Score
2,456
Errors
1,218
Warnings
+0
Change

Category Scores

Security0
Repo91
Performance91
Maintainability0

Top Issues by Category

i18n2,276
maintainability1,233
security144
performance4

Issues Details

3,674 issues found in latest scan

ERROR2,221
WordPress.WP.I18n.TextDomainMismatch

Mismatched text domain. Expected 'advanced-custom-fields' but got 'acf'.

WARNING551
WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedFunctionFound

Functions declared in the global namespace by a theme/plugin should start with the theme/plugin prefix. Found: "_acf_apply_deprecated_hook".

WARNING236
WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound

Hook names invoked by a theme/plugin should start with the theme/plugin prefix. Found: "'acf/schema/post_field_objects/post_type=' . $post_type".

WARNING174
WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedVariableFound

Global variables defined by a theme/plugin should start with the theme/plugin prefix. Found: "$acf".

WARNING113
WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedClassFound

Classes declared by a theme/plugin should start with the theme/plugin prefix. Found: "ACF".

ERROR91
missing_direct_file_access_protection

PHP file should prevent direct access. Add a check like: if ( ! defined( 'ABSPATH' ) ) exit;

ERROR76
WordPress.Security.EscapeOutput.OutputNotEscaped

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found 'acf_esc_attrs'.

ERROR39
WordPress.WP.I18n.MissingTranslatorsComment

A function call to __() with texts containing placeholders was found, but was not accompanied by a "translators:" comment on the line above to clarify the meaning of the placeholders.

WARNING36
WordPress.Security.ValidatedSanitizedInput.MissingUnslash

$_GET[$key] not unslashed before sanitization. Use wp_unslash() or similar

WARNING23
WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedNamespaceFound

Namespaces declared by a theme/plugin should start with the theme/plugin prefix. Found: "ACF\AI".

WARNING17
WordPress.Security.NonceVerification.Missing

Processing form data without nonce verification.

WARNING15
WordPress.Security.ValidatedSanitizedInput.InputNotSanitized

Detected usage of a non-sanitized input variable: $_FILES['acf']

ERROR14
WordPress.WP.I18n.MissingSingularPlaceholder

Missing singular placeholder, needed for some languages. See https://codex.wordpress.org/I18n_for_WordPress_Developers#Plurals

WARNING9
WordPress.DB.DirectDatabaseQuery.DirectQuery

Use of a direct database call is discouraged.

WARNING8
WordPress.DB.DirectDatabaseQuery.NoCaching

Direct database call without caching detected. Consider using wp_cache_get() / wp_cache_set() or wp_cache_delete().

WARNING7
WordPress.WP.EnqueuedResourceParameters.NotInFooter

In footer ($in_footer) is not set explicitly wp_enqueue_script; It is recommended to load scripts in the footer. Please set this value to `true` to load it in the footer, or explicitly `false` if it should be loaded in the header.

WARNING6
WordPress.DB.SlowDBQuery.slow_db_query_tax_query

Detected usage of tax_query, possible slow query.

WARNING4
WordPress.NamingConventions.PrefixAllGlobals.DynamicHooknameFound

Hook names invoked by a theme/plugin should start with the theme/plugin prefix. Found: "$filter/$variation=$value".

WARNING4
WordPress.NamingConventions.PrefixAllGlobals.InvalidPrefixPassed

The "acf/field" prefix is not a valid namespace/function/class/variable/constant prefix in PHP.

ERROR4
wp_function_not_compatible_with_requires_wp

Function "register_block_bindings_source()" requires WordPress 6.5.0, but your plugin minimum supported version is WordPress 6.2.0.

ERROR2
WordPress.DateTime.RestrictedFunctions.date_date

date() is affected by runtime timezone changes which can cause date/time to be incorrectly displayed. Use gmdate() instead.

ERROR2
WordPress.WP.I18n.NonSingularStringLiteralText

The $text parameter must be a single text string literal. Found: $string

WARNING2
WordPressVIPMinimum.Performance.WPQueryParams.PostNotIn_exclude

Using exclusionary parameters, like exclude, in calls to get_posts() should be done with caution, see https://wpvip.com/documentation/performance-improvements-by-removing-usage-of-post__not_in/ for more information.

ERROR2
WordPressVIPMinimum.Performance.WPQueryParams.SuppressFilters_suppress_filters

Setting `suppress_filters` to `true` is prohibited.

WARNING1
Squiz.PHP.DiscouragedFunctions.Discouraged

The use of function set_time_limit() is discouraged

Latest Snapshot

Findings

3,674

Errors

2,456

Warnings

1,218

Score History

First score snapshot

First scan completed Jun 19, 2026

v6.8.4 · Plugin Check 2.0.0 · Model 2026.06-mvp-static-v2

Jun 19, 2026

v6.8.4

23

Latest

Findings
3,674
Errors
2,456
Warnings
1,218
Plugin Check
2.0.0
Model
2026.06-mvp-static-v2

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