Web Application Pentesting
— SaaS & Technology
Web Application Pentesting engineered for the SaaS & Technology threat landscape. Every finding is backed by proof-of-concept evidence.
Free Scoping CallSaaS & Technology Vulnerability Intelligence
SaaS platforms serve as critical infrastructure for thousands of businesses. A single tenant isolation failure can cascade into a multi-organization data breach affecting millions of end users.
Multi-Tenant Data Isolation Failures
Insufficient tenant boundary enforcement in shared infrastructure allowing cross-tenant data access, configuration leakage, and privilege escalation between customer environments.
OAuth/OIDC Implementation Flaws
Misconfigured OAuth flows enabling token theft, redirect URI manipulation, scope escalation, and authorization code interception in SSO integrations.
GraphQL Query Depth and Batching Exploits
Unrestricted GraphQL query complexity allowing denial-of-service through deeply nested queries, field suggestion enumeration, and batch query abuse for data exfiltration.
CI/CD Pipeline Poisoning
Compromised build pipelines enabling supply-chain attacks through malicious dependency injection, pipeline variable manipulation, and artifact tampering.
Attack Surface
- Tenant management APIs
- Authentication and SSO
- GraphQL/REST APIs
- CI/CD pipelines
- Webhook integrations
- Admin consoles
Mandatory Regulations
Proof-Driven Methodology
Intelligence
Attack surface mapping & asset enumeration
Vulnerability Scanning
Manual testing beyond automated scanners
Manual Verification
PoC validation for every finding
Remediation Support
Remediation code + free retest
Frequently Asked Questions
What methodologies do you use?
We base our testing on OWASP Testing Guide, PTES, NIST SP 800-115, and OSSTMM frameworks.
Can we get references from previous clients?
Due to NDA constraints we cannot share client names, but we can provide sector-specific references and case studies.
Do you test remotely or on-site?
Most tests are conducted remotely via VPN. For internal network and physical security tests, we deploy on-site teams.
Why Eresus Security?
Proof-Driven Reporting
Every finding is validated with a real exploit. No scanner noise — only proven risks.
Offensive Security Expertise
Specialized team in AI security, API pentesting, Red Team operations, and cloud security review.
Free Retest Guarantee
We retest your fixes for free. Remediation code and developer support included.
Audit-Ready Deliverables
Reports accepted in ISO 27001, PCI-DSS, SOC2, GDPR, and HIPAA audit processes.
Related Service Areas
Validate Your Security Posture
Don't rely on scanner outputs. We execute the same techniques real attackers use — in a controlled environment, for you.
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