qrLogin Security & Risk Analysis

wordpress.org/plugins/qrlogin

qrLogin is an authentication system based on the reading of the qr code by the mobile phone and the transfer of authentication data via the http/https …

10 active installs v1.3.1 PHP 5.4+ WP 4.6+ Updated Oct 28, 2017
loginqrcode
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Download
Safety Verdict

Is qrLogin Safe to Use in 2026?

Generally Safe

Score 85/100

qrLogin 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 "qrlogin" v1.3.1 plugin demonstrates some good security practices, notably the complete absence of known vulnerabilities and the exclusive use of prepared statements for all SQL queries. This indicates a level of awareness regarding common web application security threats. However, the static analysis reveals a concerning weakness in output escaping, with only 42% of outputs being properly escaped. This significantly increases the risk of Cross-Site Scripting (XSS) vulnerabilities. Additionally, the presence of one unsanitized path flow in the taint analysis, even though it's not classified as critical or high, warrants attention as it represents a potential avenue for malicious input to reach sensitive functions without proper validation or sanitization. The plugin's minimal attack surface and lack of external HTTP requests are positive, but the unescaped output and potential taint flow issues are significant concerns that need to be addressed to improve its overall security posture.

Key Concerns

  • Unescaped output (42% proper)
  • Flow with unsanitized paths (1 total)
Vulnerabilities
None known

qrLogin Security Vulnerabilities

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

qrLogin Code Analysis

Dangerous Functions
0
Raw SQL Queries
0
10 prepared
Unescaped Output
11
8 escaped
Nonce Checks
2
Capability Checks
0
File Operations
1
External Requests
0
Bundled Libraries
0

SQL Query Safety

100% prepared10 total queries

Output Escaping

42% escaped19 total outputs
Data Flows
1 unsanitized

Data Flow Analysis

2 flows1 with unsanitized paths
qrl_sanitize_option (qrlogin.php:271)
Source (user input) Sink (dangerous op) Sanitizer Transform Unsanitized Sanitized
Attack Surface

qrLogin Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 7
actionplugins_loadedqrlogin.php:39
actionlogin_enqueue_scriptsqrlogin.php:44
actionlogin_footerqrlogin.php:45
actionshow_user_profileqrlogin.php:47
actionadmin_enqueue_scriptsqrlogin.php:49
actionadmin_menuqrlogin.php:50
actionparse_requestqrlogin.php:52
Maintenance & Trust

qrLogin Maintenance & Trust

Maintenance Signals

WordPress version tested4.8.28
Last updatedOct 28, 2017
PHP min version5.4
Downloads3K

Community Trust

Rating0/100
Number of ratings0
Active installs10
Developer Profile

qrLogin Developer Profile

qrlogin

1 plugin · 10 total installs

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

How We Detect qrLogin

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/qrlogin/qrcode.js
Script Paths
qrcode.js

HTML / DOM Fingerprints

Data Attributes
id="qrlogin_wplogin_div"id="qrlogin_qrcode"id="qrl_qrcode"id="qrl_login_status"id="qrlogin_login_error"
JS Globals
qrl_divqrl_parent_divqrlogin_wplogin_move_divqrlogin_set_dotsqrlogin_if_loggedqrlogin_stop_scan+3 more
REST Endpoints
qrl_ajax
FAQ

Frequently Asked Questions about qrLogin