OS Adder Security & Risk Analysis

wordpress.org/plugins/os-adder

Add the operating-system's abbreviation as a CSS-Class to the body-tag.

10 active installs v0.2 PHP + WP 3.0.1+ Updated Nov 19, 2015
add-classbodyclasscssoperating-system
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Download
Safety Verdict

Is OS Adder Safe to Use in 2026?

Generally Safe

Score 85/100

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

No known CVEs Updated 10yr ago
Risk Assessment

The os-adder v0.2 plugin exhibits a generally strong security posture based on the provided static analysis. The absence of identified dangerous functions, raw SQL queries, file operations, external HTTP requests, and critical/high severity taint flows is highly commendable. Furthermore, the plugin has no recorded vulnerability history, indicating a lack of past security incidents and a potentially mature development process.

However, a significant concern arises from the complete lack of output escaping. While the attack surface appears minimal and seemingly protected, the 100% unescaped output for the single output identified presents a clear risk of Cross-Site Scripting (XSS) vulnerabilities. If user-supplied data is ever rendered directly to the browser without proper sanitization, an attacker could inject malicious scripts. The lack of nonce and capability checks across all entry points is also a weakness, though the reported zero entry points without these checks mitigates immediate risk. It is crucial to address the unescaped output to prevent potential XSS attacks, even with a limited apparent attack surface.

Key Concerns

  • Output is not properly escaped
  • No nonce checks on entry points
  • No capability checks on entry points
Vulnerabilities
None known

OS Adder Security Vulnerabilities

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

OS Adder Release Timeline

No version history available.
Code Analysis
Analyzed Apr 16, 2026

OS Adder Code Analysis

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

Output Escaping

0% escaped1 total outputs
Attack Surface

OS Adder Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 2
actionwp_enqueue_scriptsOS-Adder.php:11
actionwp_headOS-Adder.php:12
Maintenance & Trust

OS Adder Maintenance & Trust

Maintenance Signals

WordPress version tested4.3.34
Last updatedNov 19, 2015
PHP min version
Downloads1K

Community Trust

Rating0/100
Number of ratings0
Active installs10
Developer Profile

OS Adder Developer Profile

trauben-nuss

1 plugin · 10 total installs

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

How We Detect OS Adder

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/os-adder/OS-Adder.js
Script Paths
/wp-content/plugins/os-adder/OS-Adder.js

HTML / DOM Fingerprints

FAQ

Frequently Asked Questions about OS Adder