
Copyscape Premium Security & Risk Analysis
wordpress.org/plugins/copyscape-premiumThe Copyscape Premium plugin lets you check if a WordPress post is unique before it's published, by searching for duplicate content on the web.
Is Copyscape Premium Safe to Use in 2026?
Generally Safe
Score 98/100Copyscape Premium has a strong security track record. Known vulnerabilities have been patched promptly.
The 'copyscape-premium' v1.4.2 plugin exhibits a mixed security posture. While it demonstrates strengths in its limited attack surface, particularly with zero unprotected entry points, and a reasonable adoption of prepared statements for SQL queries, significant concerns arise from its output escaping and taint analysis. The low percentage of properly escaped output (30%) suggests a high risk of cross-site scripting (XSS) vulnerabilities across various parts of the plugin. The presence of a single flow with unsanitized paths, even if not classified as critical or high severity in this scan, represents a potential avenue for attackers to exploit the plugin by manipulating input that affects file operations or other sensitive processes. The vulnerability history, while showing no currently unpatched issues, indicates a past pattern of medium severity vulnerabilities, primarily CSRF, suggesting the developers have addressed issues but the code may have inherent complexities that lead to such vulnerabilities. This highlights a need for continued vigilance and thorough code reviews.
Key Concerns
- Low percentage of properly escaped output
- Flow with unsanitized paths
- Past medium severity vulnerabilities
Copyscape Premium Security Vulnerabilities
CVEs by Year
Severity Breakdown
2 total CVEs
Copyscape Premium <= 1.4.1 - Cross-Site Request Forgery
Copyscape Premium <= 1.3.8 - Cross-Site Request Forgery
Copyscape Premium Code Analysis
SQL Query Safety
Output Escaping
Data Flow Analysis
Copyscape Premium Attack Surface
AJAX Handlers 1
WordPress Hooks 9
Maintenance & Trust
Copyscape Premium Maintenance & Trust
Maintenance Signals
Community Trust
Copyscape Premium Alternatives
Plagiarism
plagiarism
Checks your contents (posts and pages) against the web for inadvertant duplicate content before postings. Detects online copies of your older posts.
Copyscape Post Checker
copyscape
This plugin will allow administrators to chek posts against copyscape via the copyscape API.
ContentTrace
contenttrace
Protect your WordPress content with invisible fingerprints and dual detection technology. Find who copied your posts and prove ownership.
Quetext
quetext
Quetext’s Wordpress Plugin uses DeepSearch™ technology to identify any content throughout your work that might be plagiarized.
Advanced Custom Fields: Unique ID Field
acf-unique-id-field
Create a unique ID to easily identify repeater field's rows.
Copyscape Premium Developer Profile
1 plugin · 1K total installs
How We Detect Copyscape Premium
Patterns used to identify this plugin on WordPress sites during automated security audits and web crawling.
Asset Fingerprints
/wp-content/plugins/copyscape-premium/css/copyscape-premium.css/wp-content/plugins/copyscape-premium/js/copyscape-premium.js/wp-content/plugins/copyscape-premium/js/copyscape-premium.jscopyscape-premium/css/copyscape-premium.css?ver=copyscape-premium/js/copyscape-premium.js?ver=HTML / DOM Fingerprints
copyscape-premium-wrapCopyscape Premium plugin - AJAX request handler.Copyscape Premium plugin - AJAX request handler.Copyscape Premium plugin - AJAX request handler.data-copyscape-noncedata-copyscape-actioncopyscape_premium_ajax_object/wp-json/copyscape-premium/v1/check