Security for PHP Applications

PHP Penetration Testing

Secure your enterprise with DSecured's expert PHP penetration testing: Proven experience, detailed reports, and a track record of satisfied corporations.

With years of expertise in the industry, DSecured has successfully conducted numerous PHP penetration tests, identifying critical vulnerabilities before they can be exploited. Our comprehensive and insightful reports enable IT departments to address and mitigate risks effectively. Enhance your security with our proven experts today and join our multitude of satisfied customers.

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Damian Strobel - CEO DSecured

Damian Strobel

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My Recommendation

Modern protection for PHP platforms

Many PHP stacks have grown historically - this is exactly where the dangerous entry points hide. We uncover logic errors, session handling and deployment weaknesses before attackers exploit them.
Audit Focus

What we test in PHP projects

  • PHP Frameworks (Laravel, Symfony, Drupal)

    Framework-specific security features, ORM misuse, template engines, and custom code for framework-typical vulnerabilities.

  • Legacy & Custom PHP Code

    SQL injections, file inclusion vulnerabilities, deserialization issues, and insecure input validation in custom code.

  • CMS & Plugin Ecosystem

    WordPress, Drupal, TYPO3 installations, custom plugins/themes, and third-party components for known and zero-day vulnerabilities.

PHP frameworks prevent many vulnerabilities - but custom code, deserialization, and file uploads remain critical.
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Why PHP projects need regular penetration tests

PHP is the most widely used server-side language on the web and powers millions of websites - from WordPress blogs to Laravel SaaS platforms and enterprise Symfony applications. However, this massive adoption makes PHP a preferred target: SQL injections in legacy code, deserialization RCE via unserialize(), file upload bypasses, and vulnerable Composer packages regularly lead to critical vulnerabilities - from database dumps to server takeovers and full infrastructure compromise.

Legacy Code & SQL Injections Despite modern frameworks, massive amounts of legacy PHP code exist with direct SQL queries, insecure input sanitization, and missing prepared statement usage - SQL injection remains a classic vulnerability.

Deserialization & File Upload RCE unserialize() with user input leads to RCE, file upload bypasses via double extensions (.php.jpg), and path traversal vulnerabilities are PHP-specific risks with critical impact.

CMS Ecosystem & Vulnerable Packages WordPress plugins, Drupal modules, TYPO3 extensions, and vulnerable Composer packages (known CVEs) are a massive risk - the PHP ecosystem is huge, but not always secure.

We deliver prioritized results with PoC code, concrete fix suggestions for your dev team, and - if desired - management summaries for stakeholders and compliance audits.

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PHP Pentest: Focus on Web Frameworks & CMS Systems

Modern PHP development relies on established frameworks and CMS systems - from Laravel/Symfony for custom apps to WordPress/Drupal for content management. Our pentest focus is on framework-specific vulnerabilities and custom code security.

Enterprise Frameworks for Web & API

Laravel and Symfony are the dominant PHP frameworks for enterprise web applications, SaaS platforms, and REST APIs. They offer solid security defaults, but custom code, authorization logic, and framework misuse regularly lead to critical vulnerabilities.

Content Management Systems (CMS)

WordPress, Drupal, and TYPO3 dominate the CMS segment. Our focus is on custom plugins, themes, and custom post types - this is where most security vulnerabilities arise from missing input validation, SQL injections, and authorization bypasses.

Framework security is complex: Modern PHP frameworks offer solid security defaults (CSRF protection, XSS prevention, SQL injection prevention via ORMs), but custom code, authorization logic, and framework misuse regularly lead to critical vulnerabilities. Our penetration testers are experienced PHP developers and know the typical pitfalls in Laravel, Symfony, WordPress, Drupal, and TYPO3.

It would be a shame if hackers hacked your PHP application, stole data, and caused damage. We can help cost-effectively!

Which security vulnerabilities do we find during a PHP pentest?

PHP pentests uncover a broad spectrum of vulnerabilities - from SQL injections to deserialization RCE, file upload bypasses, framework-specific issues, and OWASP Top 10.

SQL Injection & Database Issues

SQL injections in legacy PHP code, insecure PDO query usage, missing prepared statements, and ORM bypasses in Eloquent/Doctrine - despite modern frameworks, SQLi remains critical.

Deserialization & Remote Code Execution

unserialize() with user input leads to RCE, Phar deserialization attacks, and object injection vulnerabilities - PHP deserialization is extremely dangerous and frequently present.

File Upload & Path Traversal

File upload bypasses via double extensions (.php.jpg), missing MIME type validation, path traversal via $_FILES, and insecure move_uploaded_file() usage lead to webshell uploads.

Local/Remote File Inclusion

LFI via include($_GET['page']), RFI attacks (when allow_url_include=On), wrapper abuse (php://filter, php://input), and directory traversal - PHP file inclusions are RCE risks.

Authentication & Authorization Bypasses

Type juggling vulnerabilities (== vs ===), session fixation, weak password hashing (MD5/SHA1 instead of bcrypt), and authorization bypasses in custom auth logic - PHP loose comparisons are dangerous.

XSS, CSRF & Vulnerable Dependencies

XSS via unescaped echo/print, missing CSRF protection, vulnerable Composer packages (known CVEs), and WordPress/Drupal plugin vulnerabilities - the PHP ecosystem is huge, but not always secure.

How much does a PHP pentest cost?

The price depends on complexity - legacy PHP apps vs. modern framework projects (Laravel/Symfony) with complex business logic and extensive Composer dependencies make the difference.

Security Quick Check

PHP Security Check

For simple web apps & CMS installations

€2,500 - €5,000
2-4 testing days
  • OWASP Top 10 testing (SQLi, XSS, CSRF)
  • File upload & path traversal testing
  • Authentication & authorization review
  • Composer audit & dependency scan
  • Fast ticket-based reporting
Ideal for: Simple PHP web apps, WordPress/Drupal installations, small business portals

PHP Penetration Testing: Blackbox or Whitebox?

The choice between blackbox and whitebox depends on your goals - realistic attacker simulation vs. complete code analysis. Both approaches have their merits, and often a combination is optimal.

Most Common

Blackbox Pentest

Realistic attacker perspective

We test your PHP application like a real attacker - without source code access, only with publicly available information. The absolute majority of our PHP pentests are blackbox tests.

Advantages:

  • Realistic attacker simulation
  • No source code disclosure required
  • Focus on externally exploitable vulnerabilities
  • Faster & more cost-effective approach

Disadvantages:

  • Business logic flaws harder to find
  • Code-level vulnerabilities are missed
  • No complete coverage guaranteed
Ideal for: Standard web apps, CMS installations, budget-constrained projects
Best Results

Whitebox Pentest

Complete code analysis

Complete source code review combined with dynamic testing. Our penetration testers are experienced PHP developers (Laravel, Symfony) and know framework-specific vulnerabilities from years of practice.

Advantages:

  • Complete code coverage & business logic review
  • Framework-specific vulnerability detection
  • Detection of code-level flaws (unserialize, LFI)
  • Significantly more results than blackbox

Disadvantages:

  • Higher costs (more time-intensive)
  • Source code access required
  • Longer project duration
Ideal for: Laravel/Symfony SaaS, enterprise apps, fintech/healthcare, compliance audits

Our recommendation: Greybox approach as a compromise - blackbox testing combined with selective source code access for critical areas (authorization, payment logic). This way you get realistic attacker simulation + targeted code review for critical components.

Blackbox vs Greybox vs Whitebox - Detailed comparison
Quick Start

Mini Pentest for PHP

Our Mini Pentest for PHP checks type juggling, insecure include() calls, session fixation and file upload bypasses. Perfect for legacy PHP apps or custom CMS systems that need quick security baseline checks.

8 Hours Intensive Testing

Focused examination of the most critical vulnerabilities

€1,399 net

Transparent fixed price - no hidden costs

Prioritized Results

Fast, actionable reporting as ticket list

Popular add-ons:

Re-Test after remediation (+€399)
Management Summary for stakeholders (+€399)
Double testing time to 16h (+€1,399)
Trust through experience

Some companies we have been able to help

We've had the privilege of working with some of the world's leading companies and strengthening their IT security.

Frequently Asked Questions

How long does a typical PHP penetration test take?

An average PHP penetration test is normally completed in 1-3 weeks. However, this varies depending on the complexity and scope of the systems being tested.

What types of security vulnerabilities can a PHP penetration test uncover?

The focus here is usually on web security vulnerabilities: IDOR, SQL injection, RCE, file path traversals, and similar issues. Business logic errors and other vulnerabilities can also be identified.

How do I prepare my team for an upcoming PHP penetration test?

We need access to a demo version of your application. Ideally with realistic data - this naturally includes users and roles. Documentation and architecture diagrams are also helpful.

Is the environment secure during a PHP penetration test?

We ensure that we work exclusively on test environments. These should be separated from production environments.

Is there a specific phase of development where PHP security assessments should best be performed?

A certain portion should be automated during the CI/CD process. A good time to conduct penetration tests is after implementation and before go-live.

What final result can I expect from a PHP pentest?

The result is always a final PDF report containing a summary for management as well as a technical section. The latter is intended to enable your development team to fix the vulnerabilities found.

What additional elements are covered in a comprehensive pentest beyond PHP?

We usually deal with web applications here. The web server as well as the database play a crucial role in the scope. Communication between systems is also examined.

Are there standards followed for PHP security testing?

Yes, we adhere to recognized industry standards and frameworks such as OWASP as well as the IS pentest standard of the BSI to provide you with a methodical and thorough assessment.

How often should PHP penetration tests be performed?

The frequency should align with your development cycle, but typically retesting every 12 months or after significant changes ensures consistent security.

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