WP LetterPot Security & Risk Analysis

wordpress.org/plugins/wp-letterpot

このプラグインは、LetterPot (https://letterpot.otogimachi.jp/)のマイページの記事中に表示できるショートコードを提供します。

0 active installs v1.0.1 PHP + WP 4.0+ Updated Apr 19, 2018
letterpot
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is WP LetterPot Safe to Use in 2026?

Generally Safe

Score 85/100

WP LetterPot 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 wp-letterpot v1.0.1 plugin exhibits a generally strong security posture based on the provided static analysis. It demonstrates excellent adherence to best practices by utilizing prepared statements for all SQL queries and performing a nonce check for its single entry point. The absence of dangerous functions, file operations, and reported critical or high severity taint flows further contributes to its secure design. Furthermore, a clean vulnerability history with zero known CVEs indicates a lack of past security incidents, suggesting diligent maintenance or a low target profile.

However, a significant concern arises from the low percentage of properly escaped output (15%). This indicates a substantial risk of Cross-Site Scripting (XSS) vulnerabilities, as user-supplied data is likely being rendered without sufficient sanitization. While the attack surface is minimal and protected, and there are no unauthenticated entry points, the unescaped output is a critical weakness that could be exploited. The single external HTTP request, while not inherently risky, should be monitored for potential vulnerabilities if the target URL or its content is untrusted.

In conclusion, wp-letterpot v1.0.1 has strengths in its secure handling of SQL, minimal attack surface, and clean vulnerability history. However, the prevalent lack of output escaping is a major security flaw that overshadows these positives and requires immediate attention to mitigate XSS risks. Addressing this output escaping issue would significantly improve the plugin's overall security.

Key Concerns

  • Low percentage of properly escaped output (15%)
Vulnerabilities
None known

WP LetterPot Security Vulnerabilities

No known vulnerabilities — this is a good sign.
Version History

WP LetterPot Release Timeline

v1.0.1Current
v1.0.0
Code Analysis
Analyzed Apr 16, 2026

WP LetterPot Code Analysis

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

SQL Query Safety

100% prepared1 total queries

Output Escaping

15% escaped13 total outputs
Attack Surface

WP LetterPot Attack Surface

Entry Points1
Unprotected0

Shortcodes 1

[LetterPot] wp-letterpot.php:17
WordPress Hooks 5
actionadmin_menuwp-letterpot.php:15
actionadmin_menuwp-letterpot.php:16
actionadmin_enqueue_scriptswp-letterpot.php:18
filterthe_contentwp-letterpot.php:19
actioncron_upadte_user_datawp-letterpot.php:22

Scheduled Events 1

cron_upadte_user_data
Maintenance & Trust

WP LetterPot Maintenance & Trust

Maintenance Signals

WordPress version tested4.9.29
Last updatedApr 19, 2018
PHP min version
Downloads1K

Community Trust

Rating0/100
Number of ratings0
Active installs0
Alternatives

WP LetterPot Alternatives

No alternatives data available yet.

Developer Profile

WP LetterPot Developer Profile

Masahiro NAKASHIMA

10 plugins · 54K total installs

85
trust score
Avg Security Score
87/100
Avg Patch Time
30 days
View full developer profile
Detection Fingerprints

How We Detect WP LetterPot

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/wp-letterpot/assets/css/styles.min.css/wp-content/plugins/wp-letterpot/assets/js/validation/languages/jquery.validationEngine-ja.js/wp-content/plugins/wp-letterpot/assets/js/validation/jquery.validationEngine.js/wp-content/plugins/wp-letterpot/assets/js/formValidate.js/wp-content/plugins/wp-letterpot/assets/css/validationEngine.jquery.css
Script Paths
/wp-content/plugins/wp-letterpot/assets/js/validation/languages/jquery.validationEngine-ja.js/wp-content/plugins/wp-letterpot/assets/js/validation/jquery.validationEngine.js/wp-content/plugins/wp-letterpot/assets/js/formValidate.js

HTML / DOM Fingerprints

CSS Classes
user-infousernamethumbnailamount-lists
Data Attributes
id="wrap-main"
Shortcode Output
[LetterPot]
FAQ

Frequently Asked Questions about WP LetterPot