SonarSource Rules
  • Products

    In-IDE

    Code Quality and Security in your IDE with SonarQube Ide

    IDE extension that lets you fix coding issues before they exist!

    Discover SonarQube for IDE

    SaaS

    Code Quality and Security in the cloud with SonarQube Cloud

    Setup is effortless and analysis is automatic for most languages

    Discover SonarQube Cloud

    Self-Hosted

    Code Quality and Security Self-Hosted with SonarQube Server

    Fast, accurate analysis; enterprise scalability

    Discover SonarQube Server
  • SecretsSecrets
  • ABAPABAP
  • AnsibleAnsible
  • ApexApex
  • AzureResourceManagerAzureResourceManager
  • CC
  • C#C#
  • C++C++
  • CloudFormationCloudFormation
  • COBOLCOBOL
  • CSSCSS
  • DartDart
  • DockerDocker
  • FlexFlex
  • GitHub ActionsGitHub Actions
  • GoGo
  • HTMLHTML
  • JavaJava
  • JavaScriptJavaScript
  • JSONJSON
  • JCLJCL
  • KotlinKotlin
  • KubernetesKubernetes
  • Objective CObjective C
  • PHPPHP
  • PL/IPL/I
  • PL/SQLPL/SQL
  • PythonPython
  • RPGRPG
  • RubyRuby
  • RustRust
  • ScalaScala
  • ShellShell
  • SwiftSwift
  • TerraformTerraform
  • TextText
  • TypeScriptTypeScript
  • T-SQLT-SQL
  • VB.NETVB.NET
  • VB6VB6
  • XMLXML
  • YAMLYAML
PHP

PHP static code analysis

Unique rules to find Bugs, Vulnerabilities, Security Hotspots, and Code Smells in your PHP code

  • All rules 273
  • Vulnerability42
  • Bug51
  • Security Hotspot34
  • Code Smell146
 
Tags
    Impact
      Clean code attribute
        1. Server-side requests should not be vulnerable to traversing attacks

           Vulnerability
        2. Credentials should not be hard-coded

           Vulnerability
        3. Secret keys and salt values should be robust

           Vulnerability
        4. Applications should not create session cookies from untrusted input

           Vulnerability
        5. Reflection should not be vulnerable to injection attacks

           Vulnerability
        6. OS commands should not be vulnerable to argument injection attacks

           Vulnerability
        7. A new session should be created during user authentication

           Vulnerability
        8. Authorizations should be based on strong decisions

           Vulnerability
        9. Cipher algorithms should be robust

           Vulnerability
        10. Encryption algorithms should be used with secure mode and padding scheme

           Vulnerability
        11. Server hostnames should be verified during SSL/TLS connections

           Vulnerability
        12. Include expressions should not be vulnerable to injection attacks

           Vulnerability
        13. Dynamic code execution should not be vulnerable to injection attacks

           Vulnerability
        14. HTTP request redirections should not be open to forging attacks

           Vulnerability
        15. Logging should not be vulnerable to injection attacks

           Vulnerability
        16. Server-side requests should not be vulnerable to forging attacks

           Vulnerability
        17. Deserialization should not be vulnerable to injection attacks

           Vulnerability
        18. Endpoints should not be vulnerable to reflected cross-site scripting (XSS) attacks

           Vulnerability
        19. Server certificates should be verified during SSL/TLS connections

           Vulnerability
        20. LDAP connections should be authenticated

           Vulnerability
        21. Cryptographic keys should be robust

           Vulnerability
        22. Weak SSL/TLS protocols should not be used

           Vulnerability
        23. Database queries should not be vulnerable to injection attacks

           Vulnerability
        24. "file_uploads" should be disabled

           Vulnerability
        25. "enable_dl" should be disabled

           Vulnerability
        26. "session.use_trans_sid" should not be enabled

           Vulnerability
        27. "cgi.force_redirect" should be enabled

           Vulnerability
        28. "allow_url_fopen" and "allow_url_include" should be disabled

           Vulnerability
        29. "open_basedir" should limit file access

           Vulnerability
        30. Session-management cookies should not be persistent

           Vulnerability
        31. "sleep" should not be called

           Vulnerability
        32. XML parsers should not be vulnerable to XXE attacks

           Vulnerability
        33. Regular expressions should not be vulnerable to Denial of Service attacks

           Vulnerability
        34. Neither DES (Data Encryption Standard) nor DESede (3DES) should be used

           Vulnerability
        35. Cryptographic RSA algorithms should always incorporate OAEP (Optimal Asymmetric Encryption Padding)

           Vulnerability
        36. A secure password should be used when connecting to a database

           Vulnerability
        37. XPath expressions should not be vulnerable to injection attacks

           Vulnerability
        38. I/O function calls should not be vulnerable to path injection attacks

           Vulnerability
        39. LDAP queries should not be vulnerable to injection attacks

           Vulnerability
        40. OS commands should not be vulnerable to command injection attacks

           Vulnerability
        41. SHA-1 and Message-Digest hash algorithms should not be used in secure contexts

           Vulnerability
        42. Password hashing functions should use an unpredictable salt

           Vulnerability

        "allow_url_fopen" and "allow_url_include" should be disabled

        intentionality - complete
        security
        Vulnerability
        • cwe
        • php-ini

        File access functions in PHP are typically used to open local files. They are also capable of reading files from remote servers using protocols such as HTTP, HTTPS and FTP.

        This behavior is controlled by the allow_url_fopen and allow_url_include settings.

        Why is this an issue?

        How can I fix it?

        More Info

        Most applications do not require or expect the file access functions to download remotely accessible files. However, attackers can abuse these remote file access features while exploiting other vulnerabilities, such as path traversal issues.

        What is the potential impact?

        While activating these settings does not pose a direct threat to the application’s security, they can make the exploitation of other vulnerabilities easier and more severe.

        If an attacker can control a file location while allow_url_fopen is set to 1, they can use this ability to perform a Server-Side Request Forgery exploit. This allows the attacker to affect more than just the local application and they may be able to laterally attack other assets on the local network.

        If allow_url_include is set to 1, the attacker will also have the ability to download and execute arbitrary PHP code.

          Available In:
        • SonarQube IdeCatch issues on the fly,
          in your IDE
        • SonarQube CloudDetect issues in your GitHub, Azure DevOps Services, Bitbucket Cloud, GitLab repositories
        • SonarQube Community BuildAnalyze code in your
          on-premise CI
          Available Since
          9.1
        • SonarQube ServerAnalyze code in your
          on-premise CI
          Developer Edition
          Available Since
          9.1

        © 2008-2025 SonarSource SA. All rights reserved.

        Privacy Policy | Cookie Policy | Terms of Use