drupal-security-misconfiguration

A Drupal code rule that checks for unsafe security settings, based on the OWASP Top 10, a common guide to web-application risks.

In plain words
What is it for?
Use it to review Drupal settings and configuration files for disabled caching, open update access, rebuild access, and missing or weak trusted-host patterns.
Why use it?
It helps catch development settings left enabled in production and weak host protections that can expose or misdirect a Drupal site.

Cursor rule for Cursor

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/ivangrynenko/cursorrules/drupal-security-misconfiguration
Clone the repo
git clone --depth 1 https://github.com/ivangrynenko/cursorrules

Made for: Cursor.

Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 1,510 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.01510
Opus 5 $0.00000 $0.00755
Sonnet 5 $0.00000 $0.00302
Haiku 4.5 $0.00000 $0.00151

Measured 2d ago against content hash 871394221e2e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

drupal-security-misconfiguration scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.cursor/rules/drupal-security-misconfiguration.mdc · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Drupal Security Misconfiguration Standards (OWASP A05:2021)

This rule enforces security best practices to prevent misconfiguration vulnerabilities in Drupal applications, as defined in OWASP Top 10:2021-A05.

Rule Details

  • Name: drupal_security_misconfiguration

  • Description: Detect and prevent security misconfigurations in Drupal as defined in OWASP Top 10:2021-A05

Filters

  • file extension pattern: \\.(php|inc|module|install|theme|yml|info\\.yml)$
  • file path pattern: .*

Enforcement Checks

  • Conditions:
    • pattern \\$settings\\['update_free_access'\\]\\s*=\\s*TRUE|\\$settings\\['cache'\\]\\s*=\\s*FALSE|\\$settings\\['rebuild_access'\\]\\s*=\\s*TRUE|\\$config\\['system\\.performance'\\]\\['cache'\\]\\s*=\\s*FALSE – Development settings detected in production code. Ensure these settings are only enabled in development environments.
      • Pattern 1: Development settings in production code
    • pattern settings\\.php|settings\\.local\\.php – Verify that $settings['trusted_host_patterns'] is properly configured to prevent HTTP Host header attacks.
      • Pattern 2: Missing or weak trusted host patterns
    • pattern \\$config\\['system\\.logging'\\]\\['error_level'\\]\\s*=\\s*'verbose'|ini_set\\('display_errors'\\s*,\\s*'1'\\)|error_reporting\\(E_ALL\\) – Error display should be disabled in production. Use 'hide' for error_level in production.
      • Pattern 3: Debugging/error display enabled
    • pattern \\$settings\\['file_chmod_directory'\\]\\s*=\\s*0777|\\$settings\\['file_chmod_file'\\]\\s*=\\s*0666 – Excessively permissive file permissions detected. Use more restrictive permissions.
      • Pattern 4: Insecure file permissions settings
    • pattern \\.htaccess|sites/default/default\\.settings\\.php – Ensure Content-Security-Policy headers are properly configured to prevent XSS attacks.
      • Pattern 5: Disabled or misconfigured CSP headers
    • pattern session\\.cookie_secure\\s*=\\s*0|session\\.cookie_httponly\\s*=\\s*0|\\$settings\\['cookie_secure_only'\\]\\s*=\\s*FALSE – Session cookies should be secure and HTTP-only in production environments.
      • Pattern 6: Insecure session cookie settings
    • pattern settings\\.php – Ensure $settings['file_private_path'] is properly configured for storing sensitive files.
      • Pattern 7: Missing or misconfigured private file path
    • pattern core\\.extension\\.yml – Check for development modules (devel, webprofiler, etc.) that should not be enabled in production.
      • Pattern 8: Development modules enabled in production
    • pattern function\\s+[a-zA-Z0-9_]+_install\\(\\) – Remove or secure default/demo content and users in production environments.
      • Pattern 9: Default or demo content in production
    • pattern \\.htaccess|nginx\\.conf – Verify X-Frame-Options, X-Content-Type-Options, X-XSS-Protection, and Referrer-Policy headers are properly configured.
      • Pattern 10: Missing or misconfigured security headers

Read the full file on GitHub · 98 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 98 lines · 1,510 tokens per session scan A 871394221e2e

Subscribe to this mod's changes

drupal-security-misconfiguration is a cursor rule published in the GitHub repository ivangrynenko/cursorrules (87 stars, last pushed 10mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,510 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.