Serial Number for Contact Form 7 Security & Risk Analysis

wordpress.org/plugins/serial-number-for-contact-form-7

Add-on for Contact Form 7 plugin. Add your own mail-tag to display the serial number.

2K active installs v2.4.0 PHP 5.6+ WP 6.0+ Updated Jun 20, 2023
contact-form-7contact-form-7-addonserial-number
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is Serial Number for Contact Form 7 Safe to Use in 2026?

Generally Safe

Score 85/100

Serial Number for Contact Form 7 has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.

No known CVEs Updated 2yr ago
Risk Assessment

The plugin 'serial-number-for-contact-form-7' v2.4.0 exhibits a strong security posture based on the provided static analysis. The absence of any identified dangerous functions, file operations, external HTTP requests, and the complete use of prepared statements for SQL queries are excellent indicators of secure coding practices. Furthermore, all output appears to be properly escaped, and the presence of a nonce check is a positive sign for input validation. The plugin also has no recorded vulnerabilities, which suggests a history of stable and secure development. The primary concern is the complete lack of capability checks, which, combined with the absence of any identified attack surface points, might indicate that the plugin is not designed to handle sensitive operations that would typically require them. However, without knowing the plugin's intended functionality, this absence could be a neutral observation rather than a direct risk.

Key Concerns

  • No capability checks found
Vulnerabilities
None known

Serial Number for Contact Form 7 Security Vulnerabilities

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

Serial Number for Contact Form 7 Code Analysis

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

SQL Query Safety

100% prepared2 total queries

Output Escaping

100% escaped162 total outputs
Attack Surface

Serial Number for Contact Form 7 Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 18
actionadmin_initadmin\functions.php:27
actionadmin_enqueue_scriptsadmin\functions.php:34
filterplugin_action_linksadmin\functions.php:45
filterplugin_row_metaadmin\functions.php:52
actioninitfunctions.php:20
actionupdated_optionfunctions.php:27
actioninitfunctions.php:34
actionnt_wpcf7sn_check_reset_countfunctions.php:49
actionwpcf7_mail_sentfunctions.php:64
actionwpcf7_mail_failedfunctions.php:71
filterwpcf7_posted_datafunctions.php:82
filterwpcf7_display_messagefunctions.php:89
filterwpcf7_special_mail_tagsfunctions.php:96
filterwpcf7_refill_responsefunctions.php:103
filterwpcf7_feedback_responsefunctions.php:108
actionadmin_menulibrary\wplib-admin-menu\wplib-admin-menu.php:534
actionadmin_initlibrary\wplib-admin-menu\wplib-admin-menu.php:850
actionadmin_enqueue_scriptslibrary\wplib-admin-menu\wplib-admin-menu.php:875
Maintenance & Trust

Serial Number for Contact Form 7 Maintenance & Trust

Maintenance Signals

WordPress version tested6.2.9
Last updatedJun 20, 2023
PHP min version5.6
Downloads10K

Community Trust

Rating100/100
Number of ratings1
Active installs2K
Developer Profile

Serial Number for Contact Form 7 Developer Profile

Nobuntu

1 plugin · 2K total installs

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

How We Detect Serial Number for Contact Form 7

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/serial-number-for-contact-form-7/admin/css/style.css
Version Parameters
serial-number-for-contact-form-7/admin/css/style.css?ver=

HTML / DOM Fingerprints

CSS Classes
notice-warningnotice-altinline
HTML Comments
<!-- Admin Notice --><!-- Plugin Action Links --><!-- Plugin Meta Information --><!-- Meta Information -->
Data Attributes
data-title="Contact Form 7"thickbox open-plugin-details-modal
FAQ

Frequently Asked Questions about Serial Number for Contact Form 7