PluginScore

Image Source Control Lite – Show Image Credits and Captions

Show image credits, image captions, and copyrights. Manage image sources and warn if they are missing. The original plugin since 2012.

v3.11.0Thomas MaierUpdated Added 3k+ installs92% rating
attributionscaptionscopyrightscreditsimage sources
33
Score
140
Errors
221
Warnings
+0
Change

Category Scores

Security0
Repo100
Performance98
Maintainability43

Issues to Review

Prioritized issue groups from the latest Plugin Check scan

361 findings

Maintainability

266

13 issue groups

Security

94

6 issue groups

Performance

1

1 issue group

WARNINGMaintainabilityNon-prefixed hook nameHook names invoked by a theme/plugin should start with the theme/plugin prefix. Found: "isc-licences-list".82
Category
Maintainability
Occurrences
82
Severity
warning

Sample message

Hook names invoked by a theme/plugin should start with the theme/plugin prefix. Found: "isc-licences-list".

WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound
ERRORSecurityOutput is not escapedAll output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '"<button type='button' class='$selected$extra_class' data-position='$position'><span></span></button>"'.82
Category
Security
Occurrences
82
Severity
error

Sample message

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '"<button type='button' class='$selected$extra_class' data-position='$position'><span></span></button>"'.

WordPress.Security.EscapeOutput.OutputNotEscapedReference
WARNINGMaintainabilityNon-prefixed global variableGlobal variables defined by a theme/plugin should start with the theme/plugin prefix. Found: &quot;$_attachment&quot;.66
Category
Maintainability
Occurrences
66
Severity
warning

Sample message

Global variables defined by a theme/plugin should start with the theme/plugin prefix. Found: &quot;$_attachment&quot;.

WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedVariableFound
ERRORMaintainabilityMissing direct file access protectionPHP file should prevent direct access. Add a check like: if ( ! defined( 'ABSPATH' ) ) exit;53
Category
Maintainability
Occurrences
53
Severity
error

Sample message

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

missing_direct_file_access_protectionReference
WARNINGMaintainabilityNon-prefixed namespaceNamespaces declared by a theme/plugin should start with the theme/plugin prefix. Found: &quot;ISC&quot;.42
Category
Maintainability
Occurrences
42
Severity
warning

Sample message

Namespaces declared by a theme/plugin should start with the theme/plugin prefix. Found: &quot;ISC&quot;.

WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedNamespaceFound
WARNINGMaintainabilityNon-prefixed classClasses declared by a theme/plugin should start with the theme/plugin prefix. Found: &quot;ISC_Block_Options&quot;.6
Category
Maintainability
Occurrences
6
Severity
warning

Sample message

Classes declared by a theme/plugin should start with the theme/plugin prefix. Found: &quot;ISC_Block_Options&quot;.

WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedClassFound
WARNINGMaintainabilityNon-prefixed constantGlobal constants defined by a theme/plugin should start with the theme/plugin prefix. Found: &quot;ISCBASE&quot;.6
Category
Maintainability
Occurrences
6
Severity
warning

Sample message

Global constants defined by a theme/plugin should start with the theme/plugin prefix. Found: &quot;ISCBASE&quot;.

WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedConstantFound
ERRORSecurityException output is not escapedAll output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$packageName'.5
Category
Security
Occurrences
5
Severity
error

Sample message

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

WordPress.Security.EscapeOutput.ExceptionNotEscapedReference
WARNINGMaintainabilityslow db query meta queryDetected usage of meta_query, possible slow query.3
Category
Maintainability
Occurrences
3
Severity
warning

Sample message

Detected usage of meta_query, possible slow query.

WordPress.DB.SlowDBQuery.slow_db_query_meta_query
WARNINGMaintainabilityNon-prefixed functionFunctions declared in the global namespace by a theme/plugin should start with the theme/plugin prefix. Found: &quot;isc_image_source&quot;.3
Category
Maintainability
Occurrences
3
Severity
warning

Sample message

Functions declared in the global namespace by a theme/plugin should start with the theme/plugin prefix. Found: &quot;isc_image_source&quot;.

WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedFunctionFound
Show 10 more
WARNINGSecurityNonce verification recommended3
Category
Security
Occurrences
3
Severity
warning

Sample message

Processing form data without nonce verification.

WordPress.Security.NonceVerification.Recommended
WARNINGSecurityDatabase parameter is not escaped2
Category
Security
Occurrences
2
Severity
warning

Sample message

Unescaped parameter $query used in $wpdb-&gt;get_results()\n$query assigned unsafely at line 251.

PluginCheck.Security.DirectDB.UnescapedDBParameter
WARNINGMaintainabilityDirect Query1
Category
Maintainability
Occurrences
1
Severity
warning

Sample message

Use of a direct database call is discouraged.

WordPress.DB.DirectDatabaseQuery.DirectQuery
WARNINGMaintainabilityNo Caching1
Category
Maintainability
Occurrences
1
Severity
warning

Sample message

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

WordPress.DB.DirectDatabaseQuery.NoCaching
WARNINGMaintainabilityerror log print r1
Category
Maintainability
Occurrences
1
Severity
warning

Sample message

print_r() found. Debug code should not normally be used in production.

WordPress.PHP.DevelopmentFunctions.error_log_print_r
WARNINGMaintainabilityerror log trigger error1
Category
Maintainability
Occurrences
1
Severity
warning

Sample message

trigger_error() found. Debug code should not normally be used in production.

WordPress.PHP.DevelopmentFunctions.error_log_trigger_error
WARNINGSecurityInput is not sanitized1
Category
Security
Occurrences
1
Severity
warning

Sample message

Detected usage of a non-sanitized input variable: $_SERVER[&#039;REQUEST_URI&#039;]

WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
WARNINGSecurityRequest data is not unslashed1
Category
Security
Occurrences
1
Severity
warning

Sample message

$_SERVER[&#039;REQUEST_URI&#039;] not unslashed before sanitization. Use wp_unslash() or similar

WordPress.Security.ValidatedSanitizedInput.MissingUnslash
WARNINGPerformancePost Not In exclude1
Category
Performance
Occurrences
1
Severity
warning

Sample message

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.

WordPressVIPMinimum.Performance.WPQueryParams.PostNotIn_exclude
WARNINGMaintainabilitymismatched plugin name1
Category
Maintainability
Occurrences
1
Severity
warning

Sample message

Plugin name "Image Source Control Lite – Show Image Credits and Captions" is different from the name declared in plugin header "Image Source Control Lite".

mismatched_plugin_nameReference

External Connections

Potential connections found in static code analysis.

13 domains

Outbound calls

54

External assets

0

Incoming endpoints

11

Notable Domains

creativecommons.org28 · outbound
imagesourcecontrol.com7 · outbound
imagesourcecontrol.de3 · outbound
php-fig.org2 · outbound
youmightnotneedjquery.com2 · outbound
artlibre.org1 · outbound

Platform / Reference Domains

github.com3 · platform/reference
gnu.org3 · platform/reference
core.trac.wordpress.org1 · platform/reference
developer.wordpress.org1 · platform/reference

External Asset Domains

No external asset domains detected.

Incoming Endpoints

No public endpoints detected.

Admin AJAX endpoints11
wp_ajax_isc_download_logauthenticated

wp_ajax

wp_ajax_isc_send_feedbackauthenticated

wp_ajax

wp_ajax_isc-clear-image-posts-indexauthenticated

wp_ajax

wp_ajax_isc-clear-indexauthenticated

wp_ajax

wp_ajax_isc-clear-post-images-indexauthenticated

wp_ajax

wp_ajax_isc-clear-storageauthenticated

wp_ajax

wp_ajax_isc-image-post-relationsauthenticated

wp_ajax

wp_ajax_isc-post-image-relationsauthenticated

wp_ajax

wp_ajax_isc-show-storageauthenticated

wp_ajax

wp_ajax_newsletter_closeauthenticated

wp_ajax

wp_ajax_newsletter_signupauthenticated

wp_ajax

Score History

2 score snapshots

+0
1007550250Jun 21, 2026, 01:10 PM UTC Score 33/100 Plugin v3.9.2 Plugin Check 2.0.0 140 errors, 221 warningsJun 23, 2026, 09:34 AM UTC Score 33/100 Plugin v3.11.0 Plugin Check 2.0.0 140 errors, 221 warningsJun 21, 2026Jun 23, 2026

v3.11.0

33

Latest

Findings
361
Errors
140
Warnings
221
Check
2.0.0

v3.9.2

33

Score

Findings
361
Errors
140
Warnings
221
Check
2.0.0

Relationship Map

Author, categories, issues, domains, and nearby plugins.

33 nodes

Related Plugins

FSM Custom Featured Image Caption

5k+ active installs

47