Trinexis Security

Web Application Security Company

We help teams harden web apps: penetration testing, managed AppSec, secure SDLC, and cloud application security.

Request a Security Review See Case Studies
Penetration Testing Secure SDLC Vulnerability Mgmt. Cloud App Security

About

Trinexis is a web application security company. We map attack surface, assess risk, and partner with engineering to remediate quickly with minimal friction.

Services

From reconnaissance to exploitation and remediation, our approach blends expert manual testing with smart automation.

Web App Penetration Testing

OWASP Top 10 and beyond: auth/session, IDOR, SSRF, XSS, SQLi, RCE, business logic—prioritized by real risk.

Managed AppSec (VM/SAST/DAST)

Continuous vulnerability management, SAST/DAST orchestration, CI/CD checks, and developer enablement.

Secure SDLC & Training

Threat modeling, design & code review, and hands-on secure coding workshops.

Methodology

1
Scoping & Safe Harbor
Define assets, out-of-scope areas, rate limits, and reporting channels.
2
Recon & Mapping
Subdomain and endpoint discovery, tech stack fingerprinting, and attack surface analysis.
3
Testing & Exploitation
Targeted manual testing + tooling for coverage. Non-destructive exploitation to confirm impact.
4
Reporting & Remediation
Clear steps to reproduce, severity, affected assets, fixes, and regression checks.

Case Studies

A few anonymized highlights. Full details available upon request.

High · IDOR

Access control gap in Orders API

Privilege escalation to view other users’ invoices using predictable IDs.

  • Impact: Personal data exposure
  • Fix: Enforce per-object authorization
Critical · SSRF

SSRF via image fetcher

Bypassed allowlist to reach internal metadata endpoints.

  • Impact: Internal service access
  • Fix: Strict URL parsing, DNS pinning, egress filtering
Medium · XSS

Stored XSS in comments

Insufficient sanitization caused script execution on admin views.

  • Impact: Session theft, CSRF chaining
  • Fix: Context-aware encoding & CSP
Recognition
Add certifications, CVEs, and notable engagements here.
Work with us

Support & Ongoing Services

Retainers, vulnerability management, and developer enablement to keep you secure between pentests.

Vulnerability Management

  • Continuous scanning & validation
  • CVSS-based prioritization
  • Patch planning & tracking

Security Engineering Helpdesk

  • Remediation pairing & code review
  • Threat modeling & design reviews
  • Secrets & CI/CD hardening

Cloud & App Posture

  • CSP, headers, and SSO correctness
  • S3/GCS access & SSRF protections
  • Logging & alerting sanity checks

Contact

Need help with web application security? Send a message. We respond to critical issues within 24–72 hours.

By sending, you agree to be contacted regarding security work. No unsolicited testing—authorization is required.