Fields Security & Risk Analysis

wordpress.org/plugins/fields

Creates custom write panels to manage post custom fields.

10 active installs v0.4.3 PHP + WP 3.0+ Updated Nov 5, 2010
admincustomdatafieldsmeta
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is Fields Safe to Use in 2026?

Generally Safe

Score 85/100

Fields has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.

No known CVEs Updated 15yr ago
Risk Assessment

The plugin "fields" v0.4.3 exhibits a generally good security posture based on the static analysis. The absence of known CVEs, SQL injection vulnerabilities, and critical taint flows is a strong indicator of secure coding practices. The presence of nonce and capability checks on entry points, along with 100% of SQL queries using prepared statements, further strengthens its security. However, a significant concern lies in the output escaping, with only 15% of outputs being properly escaped. This suggests a high risk of Cross-Site Scripting (XSS) vulnerabilities, especially given the presence of 4 shortcodes which can be leveraged by attackers to inject malicious scripts. The analysis also indicates 3 flows with unsanitized paths, which, although not categorized as critical or high severity, warrants investigation and remediation to prevent potential data leakage or manipulation.

Key Concerns

  • Low percentage of properly escaped output (15%)
  • 3 flows with unsanitized paths
  • Bundled outdated jQuery v1.4.2
Vulnerabilities
None known

Fields Security Vulnerabilities

No known vulnerabilities — this is a good sign.
Code Analysis
Analyzed Mar 17, 2026

Fields Code Analysis

Dangerous Functions
0
Raw SQL Queries
0
0 prepared
Unescaped Output
76
13 escaped
Nonce Checks
1
Capability Checks
2
File Operations
0
External Requests
0
Bundled Libraries
2

Bundled Libraries

Select2jQuery1.4.2

Output Escaping

15% escaped89 total outputs
Data Flows
3 unsanitized

Data Flow Analysis

3 flows3 with unsanitized paths
<fs-meta> (admin\fs-meta.php:0)
Source (user input) Sink (dangerous op) Sanitizer Transform Unsanitized Sanitized
Attack Surface

Fields Attack Surface

Entry Points5
Unprotected0

AJAX Handlers 1

authwp_ajax_fs_import_previewadmin\fs-admin.php:22

Shortcodes 4

[field] shortcodes\fs-shortcode.php:33
[fs] shortcodes\fs-shortcode.php:34
[field_count] shortcodes\fs-shortcode.php:107
[fs_count] shortcodes\fs-shortcode.php:108
WordPress Hooks 10
actionadmin_initadmin\fs-admin.php:19
actionadmin_menuadmin\fs-admin.php:20
filtermce_buttonsadmin\fs-admin.php:70
filtermce_external_pluginsadmin\fs-admin.php:71
actionsave_postadmin\fs-meta.php:14
actionfs_initfield-types\fs-common-field-types.php:18
actionactivated_pluginfields.php:55
actioninitfields.php:60
filterfs_shortcodefields.php:72
actionfs_viewer_initshortcodes\fs-common-shortcodes.php:6
Maintenance & Trust

Fields Maintenance & Trust

Maintenance Signals

WordPress version tested3.0.5
Last updatedNov 5, 2010
PHP min version
Downloads8K

Community Trust

Rating0/100
Number of ratings0
Active installs10
Developer Profile

Fields Developer Profile

Khanh

2 plugins · 510 total installs

84
trust score
Avg Security Score
85/100
Avg Patch Time
30 days
View full developer profile
Detection Fingerprints

How We Detect Fields

Patterns used to identify this plugin on WordPress sites during automated security audits and web crawling.

Asset Fingerprints

Asset Paths
/wp-content/plugins/fields/js/fields.js/wp-content/plugins/fields/js/options.js/wp-content/plugins/fields/js/edit.js/wp-content/plugins/fields/js/import.js/wp-content/plugins/fields/css/options.css/wp-content/plugins/fields/css/edit.css/wp-content/plugins/fields/js/jquery.cookie.js
Script Paths
js/fields.jsjs/options.jsjs/edit.jsjs/import.jsjs/jquery.cookie.js
Version Parameters
js/fields.js?ver=js/options.js?ver=js/edit.js?ver=js/import.js?ver=css/options.css?ver=css/edit.css?ver=js/jquery.cookie.js?ver=

HTML / DOM Fingerprints

CSS Classes
fs_boxes_wrapfs_group_fieldsfs_field_datafs_inputfs_add_boxfs_add_groupfs_add_fieldfs_options_wrap+3 more
Data Attributes
data-fs-field-typedata-fs-field-namedata-fs-group-namedata-fs-box-key
JS Globals
fsAjaximportStrings
FAQ

Frequently Asked Questions about Fields