Postcode.eu Address Validation Security & Risk Analysis

wordpress.org/plugins/postcode-eu-address-validation

Address autocomplete and validation using the Postcode.eu API. Supports both Dutch and international addresses.

200 active installs v2.7.2 PHP 7.4+ WP 5.2+ Updated Mar 2, 2026
address-apiaddress-autocompleteaddress-validationpostcode-apipostcode-check
100
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is Postcode.eu Address Validation Safe to Use in 2026?

Generally Safe

Score 100/100

Postcode.eu Address Validation has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.

No known CVEs Updated 1mo ago
Risk Assessment

The postcode-eu-address-validation plugin v2.7.2 exhibits a strong security posture based on the provided static analysis. The complete absence of dangerous functions, raw SQL queries, unsanitized taint flows, and unprotected entry points (AJAX, REST API, shortcodes, cron events) is highly commendable. The plugin also demonstrates good practices by using prepared statements for all SQL queries and a high percentage of properly escaped output. The presence of nonce and capability checks, along with a single external HTTP request that is likely benign in nature, further reinforces this positive assessment.

While the static analysis reveals an exceptionally clean codebase with no identified vulnerabilities in its history, there are no specific concerns to flag from the code analysis itself. The plugin's lack of a significant attack surface and its secure coding practices indicate a well-maintained and security-conscious development approach. However, it is important to note that static analysis has limitations and cannot guarantee the absence of all potential vulnerabilities, especially those dependent on complex interaction flows or future WordPress core changes. Overall, this plugin appears to be a safe and secure choice, with no immediate security risks identified based on the data.

Vulnerabilities
None known

Postcode.eu Address Validation Security Vulnerabilities

No known vulnerabilities — this is a good sign.
Code Analysis
Analyzed Mar 16, 2026

Postcode.eu Address Validation Code Analysis

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

Output Escaping

97% escaped37 total outputs
Attack Surface

Postcode.eu Address Validation Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 10
actionbefore_woocommerce_initpostcode-eu-address-validation.php:36
actioninitsrc\PostcodeNl\AddressAutocomplete\Main.php:55
actionwoocommerce_initsrc\PostcodeNl\AddressAutocomplete\Main.php:60
filterwoocommerce_default_address_fieldssrc\PostcodeNl\AddressAutocomplete\Main.php:67
actionadmin_enqueue_scriptssrc\PostcodeNl\AddressAutocomplete\Main.php:70
actionwp_enqueue_scriptssrc\PostcodeNl\AddressAutocomplete\Main.php:72
actionwoocommerce_after_checkout_validationsrc\PostcodeNl\AddressAutocomplete\Main.php:86
actionadmin_menusrc\PostcodeNl\AddressAutocomplete\Main.php:88
actionadmin_noticessrc\PostcodeNl\AddressAutocomplete\Main.php:90
actionwoocommerce_blocks_checkout_block_registrationsrc\PostcodeNl\AddressAutocomplete\Main.php:92
Maintenance & Trust

Postcode.eu Address Validation Maintenance & Trust

Maintenance Signals

WordPress version tested6.9.4
Last updatedMar 2, 2026
PHP min version7.4
Downloads5K

Community Trust

Rating0/100
Number of ratings0
Active installs200
Developer Profile

Postcode.eu Address Validation Developer Profile

Postcode.nl B.V.

1 plugin · 200 total installs

94
trust score
Avg Security Score
100/100
Avg Patch Time
30 days
View full developer profile
Detection Fingerprints

How We Detect Postcode.eu Address Validation

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/postcode-eu-address-validation/assets/libraries/postcode-eu-autocomplete-address.css/wp-content/plugins/postcode-eu-address-validation/assets/libraries/postcode-eu-autocomplete-address.js/wp-content/plugins/postcode-eu-address-validation/assets/css/postcode-eu-autofill.css/wp-content/plugins/postcode-eu-address-validation/assets/js/postcode-eu-autofill.js
Script Paths
/wp-content/plugins/postcode-eu-address-validation/assets/libraries/postcode-eu-autocomplete-address.js/wp-content/plugins/postcode-eu-address-validation/assets/js/postcode-eu-autofill.js
Version Parameters
postcode-eu-address-validation/assets/libraries/postcode-eu-autocomplete-address.css?ver=postcode-eu-address-validation/assets/libraries/postcode-eu-autocomplete-address.js?ver=postcode-eu-address-validation/assets/css/postcode-eu-autofill.css?ver=postcode-eu-address-validation/assets/js/postcode-eu-autofill.js?ver=

HTML / DOM Fingerprints

CSS Classes
postcode-eu-autofillpostcode-eu-autofill-intlpostcode-eu-autofill-nlpostcode-eu-autofill-nl-postcodepostcode-eu-autofill-nl-house-numberpostcode-eu-autofill-nl-house-number-selectpostcode-eu-autofill-form-row-firstpostcode-eu-autofill-form-row-last+1 more
HTML Comments
Fix path for language files.
Data Attributes
postcodeEuAutofillIntlpostcodeEuAutofillNlPostcodepostcodeEuAutofillNlHouseNumberWithAdditionpostcodeEuAutofillNlHouseNumberSelect
REST Endpoints
/wp-json/postcode-eu-address-validation/v1/autocomplete/wp-json/postcode-eu-address-validation/v1/details/wp-json/postcode-eu-address-validation/v1/dutch-address-lookup/wp-json/postcode-eu-address-validation/v1/validate
FAQ

Frequently Asked Questions about Postcode.eu Address Validation