Simple QR Code Creator Widget Security & Risk Analysis

wordpress.org/plugins/simple-qr-code-creator-widget

A plugin that creates a QR Code (URL, Message, and Contact Information) generator for sidebar widget and in Posts and Pages.

20 active installs v1.1.3 PHP + WP 2.8+ Updated Mar 10, 2014
bar-codebarcodeqrqr-codescan-code
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is Simple QR Code Creator Widget Safe to Use in 2026?

Generally Safe

Score 85/100

Simple QR Code Creator Widget has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.

No known CVEs Updated 12yr ago
Risk Assessment

The "simple-qr-code-creator-widget" plugin version 1.1.3 exhibits a concerning security posture despite having no recorded vulnerabilities in its history and a seemingly small attack surface. The static analysis reveals critical weaknesses, most notably the use of the `create_function` dangerous function, which is known to be a significant security risk. Additionally, a complete lack of output escaping is a major red flag, indicating that any data processed by the plugin could be injected and displayed unsafely to users, potentially leading to cross-site scripting (XSS) vulnerabilities. The taint analysis further highlights this concern, with two flows identified as having unsanitized paths, suggesting that user-supplied data might not be properly handled before being used in potentially sensitive operations, even though no critical or high severity taint issues were specifically flagged. The absence of nonce and capability checks across all entry points means that even if the attack surface were larger, it would be entirely unprotected. While the plugin's vulnerability history is clean, this might be due to its limited complexity or exposure rather than robust security practices. The combination of dangerous functions, completely unescaped output, and unsanitized data flows presents a high potential for exploitation, making it a risky choice for deployment without significant remediation.

Key Concerns

  • Use of create_function dangerous function
  • No output escaping
  • Unsanitized paths in taint analysis flows
  • No nonce checks
  • No capability checks
Vulnerabilities
None known

Simple QR Code Creator Widget Security Vulnerabilities

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

Simple QR Code Creator Widget Code Analysis

Dangerous Functions
1
Raw SQL Queries
0
0 prepared
Unescaped Output
5
0 escaped
Nonce Checks
0
Capability Checks
0
File Operations
0
External Requests
0
Bundled Libraries
0

Dangerous Functions Found

create_functionadd_action('widgets_init', create_function('', 'return register_widget("QR_Generator");'));qr_generator.php:179

Output Escaping

0% escaped5 total outputs
Data Flows
2 unsanitized

Data Flow Analysis

2 flows2 with unsanitized paths
widget (qr_generator.php:102)
Source (user input) Sink (dangerous op) Sanitizer Transform Unsanitized Sanitized
Attack Surface

Simple QR Code Creator Widget Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 4
actioninitqr_generator.php:21
actionwp_print_stylesqr_generator.php:31
filterthe_contentqr_generator.php:85
actionwidgets_initqr_generator.php:179
Maintenance & Trust

Simple QR Code Creator Widget Maintenance & Trust

Maintenance Signals

WordPress version tested3.7.41
Last updatedMar 10, 2014
PHP min version
Downloads7K

Community Trust

Rating100/100
Number of ratings1
Active installs20
Developer Profile

Simple QR Code Creator Widget Developer Profile

Braden Keith

2 plugins · 30 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 QR Code Creator Widget

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/simple-qr-code-creator-widget/style.css
Script Paths
/wp-content/plugins/simple-qr-code-creator-widget/custom.js
Version Parameters
simple-qr-code-creator-widget/custom.js?ver=1.0simple-qr-code-creator-widget/style.css?ver=

HTML / DOM Fingerprints

CSS Classes
in_box
Data Attributes
id="incontentqrgen"id="wpqr_gen"id="qrin_form"id="qrtype"id="buscardqrid"id="flname"+16 more
JS Globals
var wpqr_out
Shortcode Output
<div id="incontentqrgen"><div id="wpqr_gen"><form name="qrin_form" id="qrin_form" method="post" action=""><div id="qrselect">
FAQ

Frequently Asked Questions about Simple QR Code Creator Widget