SCHEMA for Article Security & Risk Analysis

wordpress.org/plugins/schema-for-article

SCHEMA for Article is simply the easiest solution to add valid schema.org as a JSON script in the head of blog posts or articles.

300 active installs v0.4.1 PHP 5.2+ WP 4.0+ Updated Oct 28, 2018
json-ldmarkuprich-snippetsschemastructured-data
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is SCHEMA for Article Safe to Use in 2026?

Generally Safe

Score 85/100

SCHEMA for Article has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.

No known CVEs Updated 7yr ago
Risk Assessment

The "schema-for-article" plugin v0.4.1 exhibits a generally good security posture with no recorded vulnerabilities and a limited attack surface. The plugin utilizes prepared statements for all SQL queries, which is a strong security practice. However, the static analysis reveals two critical areas for concern. Firstly, the presence of two "dangerous functions" - specifically `unserialize` - indicates a potential risk if the data being unserialized originates from untrusted user input. This is further highlighted by the taint analysis, which shows two flows with "unsanitized paths." Without more context on where this unserialized data comes from, it represents a significant potential vector for code injection or other malicious activities. The plugin also shows a concerningly low rate of proper output escaping (29%), meaning that data displayed to users might not be sufficiently sanitized, potentially leading to cross-site scripting (XSS) vulnerabilities.

While the absence of known CVEs and a lack of documented vulnerability history are positive indicators, they do not negate the risks identified in the static and taint analysis. The plugin's strengths lie in its lack of external dependencies and its careful handling of database interactions. However, the identified `unserialize` usage coupled with unsanitized taint flows, and the significant output escaping deficiency, present a clear and present danger that requires immediate attention. A comprehensive audit of the data sources for `unserialize` and a thorough review of all output operations are strongly recommended.

Key Concerns

  • Dangerous function: unserialize
  • Taint flow with unsanitized path
  • Low output escaping rate (29%)
Vulnerabilities
None known

SCHEMA for Article Security Vulnerabilities

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

SCHEMA for Article Code Analysis

Dangerous Functions
2
Raw SQL Queries
0
0 prepared
Unescaped Output
25
10 escaped
Nonce Checks
0
Capability Checks
1
File Operations
0
External Requests
0
Bundled Libraries
0

Dangerous Functions Found

unserialize$get_settings = unserialize( get_option('schema_for_article_settings') );admin\class-schema-for-article-settings.php:35
unserialize$get_settings = unserialize( get_option( 'schema_for_article_settings') );frontend\class-schema-for-article.php:32

Output Escaping

29% escaped35 total outputs
Data Flows
2 unsanitized

Data Flow Analysis

2 flows2 with unsanitized paths
schema_settings (admin\class-schema-for-article-settings.php:18)
Source (user input) Sink (dangerous op) Sanitizer Transform Unsanitized Sanitized
Attack Surface

SCHEMA for Article Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 6
actionadmin_menuadmin\class-schema-for-article-admin.php:12
actionadmin_initadmin\class-schema-for-article-admin.php:16
filteradmin_footer_textadmin\class-schema-for-article-admin.php:51
filteradmin_footer_textadmin\class-schema-for-article-admin.php:62
actionwp_headfrontend\class-schema-for-article.php:12
actionplugins_loadedschema-for-article-main.php:59
Maintenance & Trust

SCHEMA for Article Maintenance & Trust

Maintenance Signals

WordPress version tested5.0.25
Last updatedOct 28, 2018
PHP min version5.2
Downloads13K

Community Trust

Rating96/100
Number of ratings5
Active installs300
Developer Profile

SCHEMA for Article Developer Profile

Sami Ahmed Siddiqui

7 plugins · 116K total installs

74
trust score
Avg Security Score
93/100
Avg Patch Time
966 days
View full developer profile
Detection Fingerprints

How We Detect SCHEMA for Article

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/schema-for-article/schema-for-article-main.js/wp-content/plugins/schema-for-article/admin/css/about-plugins.min.css
Script Paths
/wp-content/plugins/schema-for-article/schema-for-article-main.js
Version Parameters
schema-for-article/schema-for-article-main.js?ver=schema-for-article/admin/css/about-plugins.min.css?ver=

HTML / DOM Fingerprints

CSS Classes
schema-for-article
FAQ

Frequently Asked Questions about SCHEMA for Article