Email Blocklist Security & Risk Analysis

wordpress.org/plugins/email-blocklist

Keep your WordPress site clean by blocking signups and comments from temporary or disposable email domains. 100% free, no paid APIs.

10 active installs v1.2.7 PHP 7.4+ WP 5.2+ Updated Mar 2, 2026
disposable-emailsspam-preventiontemporary-emailsuser-registrationvalidate-email
100
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is Email Blocklist Safe to Use in 2026?

Generally Safe

Score 100/100

Email Blocklist 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 email-blocklist plugin v1.2.7 demonstrates a generally good security posture, with no recorded vulnerabilities or critical findings in the static and taint analysis. The absence of dangerous functions, raw SQL queries, and file operations is commendable. The plugin also shows strong adherence to security best practices, with a high percentage of properly escaped output and a decent number of nonce and capability checks. However, there are a few areas for improvement that prevent a perfect score. The presence of one flow with an unsanitized path in the taint analysis, while not critical, indicates a potential weakness that could be exploited under specific circumstances. Additionally, the plugin makes two external HTTP requests, which, without further context on their purpose and the security of their endpoints, introduce a minor risk. The overall lack of historical vulnerabilities is a positive indicator, suggesting diligent development and maintenance, but the identified taint flow warrants attention for future development.

Key Concerns

  • Flow with unsanitized path found
  • External HTTP requests made
Vulnerabilities
None known

Email Blocklist Security Vulnerabilities

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

Email Blocklist Code Analysis

Dangerous Functions
0
Raw SQL Queries
0
0 prepared
Unescaped Output
5
51 escaped
Nonce Checks
3
Capability Checks
3
File Operations
0
External Requests
2
Bundled Libraries
0

Output Escaping

91% escaped56 total outputs
Data Flows
1 unsanitized

Data Flow Analysis

2 flows1 with unsanitized paths
showNoticesAftetScanExistingUsers (email-blocklist.php:461)
Source (user input) Sink (dangerous op) Sanitizer Transform Unsanitized Sanitized
Attack Surface

Email Blocklist Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 20
actionadmin_menuemail-blocklist.php:40
actionadmin_initemail-blocklist.php:41
filterplugin_action_linksemail-blocklist.php:42
actionadmin_enqueue_scriptsemail-blocklist.php:43
filteris_emailemail-blocklist.php:45
filterlogin_errorsemail-blocklist.php:47
filterregistration_errorsemail-blocklist.php:48
filteruser_profile_update_errorsemail-blocklist.php:49
actionload-settings_page_email-blocklist-settingsemail-blocklist.php:51
actionadmin_noticesemail-blocklist.php:52
actionwpemail-blocklist.php:54
actionembl_update_global_blocklist_cron_hookemail-blocklist.php:55
actionload-settings_page_email-blocklist-settingsemail-blocklist.php:57
actionload-settings_page_email-blocklist-settingsemail-blocklist.php:58
actionadmin_noticesemail-blocklist.php:59
filtermanage_users_columnsemail-blocklist.php:60
filtermanage_users_custom_columnemail-blocklist.php:61
filtermanage_users_sortable_columnsemail-blocklist.php:62
actionpre_get_usersemail-blocklist.php:63
actionmanage_users_extra_tablenavemail-blocklist.php:64

Scheduled Events 1

embl_update_global_blocklist_cron_hook
Maintenance & Trust

Email Blocklist Maintenance & Trust

Maintenance Signals

WordPress version tested6.9.4
Last updatedMar 2, 2026
PHP min version7.4
Downloads458

Community Trust

Rating0/100
Number of ratings0
Active installs10
Developer Profile

Email Blocklist Developer Profile

Michał Kowalik

1 plugin · 10 total installs

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

How We Detect Email Blocklist

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/email-blocklist/assets/css/admin-style.css
Version Parameters
email-blocklist/assets/css/admin-style.css?ver=

HTML / DOM Fingerprints

CSS Classes
embl-noticeembl-settings-page
HTML Comments
<!-- This is the main settings page for the Email Blocklist plugin. --><!-- Scan existing users button --><!-- Notice for after scanning existing users -->
Data Attributes
data-embl-noticedata-embl-notice-type
JS Globals
embl_ajax_objectembl_admin_notices_object
FAQ

Frequently Asked Questions about Email Blocklist