Simple Login Lockdown Security & Risk Analysis

wordpress.org/plugins/simple-login-lockdown

Simple Login Lockdown prevents brute force login attacks/attempts on your WordPress installation.

4K active installs v1.1 PHP + WP 3.2.0+ Updated Nov 28, 2017
loginsecurity
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is Simple Login Lockdown Safe to Use in 2026?

Generally Safe

Score 85/100

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

No known CVEs Updated 8yr ago
Risk Assessment

The static analysis of the "simple-login-lockdown" v1.1 plugin reveals a generally good security posture. The code exhibits strong adherence to best practices, with 100% of SQL queries using prepared statements and 100% of output properly escaped. There are no identified dangerous functions, file operations, external HTTP requests, or bundled libraries that might introduce risks. Furthermore, the absence of any identified taint flows or vulnerabilities in its history suggests a well-developed and secure codebase. The attack surface is also minimal, with no AJAX handlers, REST API routes, shortcodes, or cron events exposed, and importantly, zero unprotected entry points. However, a notable absence of nonce checks and capability checks across any entry points, while currently not an issue due to the zero attack surface, represents a potential future risk if new functionality with entry points is added without proper security controls. This lack of explicit authorization mechanisms is the primary concern, indicating a reliance on the plugin's current limited scope rather than built-in security for broader applicability.

Key Concerns

  • No nonce checks detected
  • No capability checks detected
Vulnerabilities
None known

Simple Login Lockdown Security Vulnerabilities

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

Simple Login Lockdown Code Analysis

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

Output Escaping

100% escaped9 total outputs
Attack Surface

Simple Login Lockdown Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 6
actionplugins_loadedinc\admin.php:100
actionadmin_initinc\admin.php:113
actionplugins_loadedinc\login.php:90
actionwp_login_failedinc\login.php:103
actionlogin_initinc\login.php:104
actionwp_logininc\login.php:105
Maintenance & Trust

Simple Login Lockdown Maintenance & Trust

Maintenance Signals

WordPress version tested3.5.2
Last updatedNov 28, 2017
PHP min version
Downloads61K

Community Trust

Rating88/100
Number of ratings7
Active installs4K
Developer Profile

Simple Login Lockdown Developer Profile

chrisguitarguy

8 plugins · 9K total installs

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

How We Detect Simple Login Lockdown

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/simple-login-lockdown/css/admin.css/wp-content/plugins/simple-login-lockdown/js/admin.js
Script Paths
/wp-content/plugins/simple-login-lockdown/js/admin.js
Version Parameters
simple-login-lockdown/css/admin.css?ver=simple-login-lockdown/js/admin.js?ver=

HTML / DOM Fingerprints

CSS Classes
cd-sll-error-messagecd-sll-status-messagecd-sll-form-settings
Data Attributes
data-cd-sll-nonce
JS Globals
cd_sll_admin_ajax_object
FAQ

Frequently Asked Questions about Simple Login Lockdown