EresusSecurity

Source Code Review
— File Upload Code Review

Source Code Review engineered for the File Upload Code Review threat landscape. Every finding is backed by proof-of-concept evidence.

Free Scoping Call

File Upload Code Review delivery and security model

Code review for upload, import, conversion, archive extraction, and media-processing workflows across file type, path traversal, malware, and pipeline risk.

Focus areas

  • File type and content validation
  • Path traversal and archive extraction risk
  • Storage bucket and access policy
  • Asynchronous processing and malware scanning

Delivery notes

  • Findings explain upload endpoint and storage behavior
  • Dangerous processing steps are made explicit
  • Remediation maps to validation, storage policy, and scanning flow

Decision matrix

File Upload Code Review is not just a service label; it states how each control is validated and which evidence is expected at closure.

Evidence driven
ControlDecision questionValidationExpected evidence
File type and content validationDoes File type and content validation create real risk?Validated against the relevant code, request, configuration, or runtime behavior in Source Code Review.Findings explain upload endpoint and storage behavior
Path traversal and archive extraction riskDoes Path traversal and archive extraction risk create real risk?Validated against the relevant code, request, configuration, or runtime behavior in Source Code Review.Dangerous processing steps are made explicit
Storage bucket and access policyDoes Storage bucket and access policy create real risk?Validated against the relevant code, request, configuration, or runtime behavior in Source Code Review.Remediation maps to validation, storage policy, and scanning flow
Asynchronous processing and malware scanningDoes Asynchronous processing and malware scanning create real risk?Validated against the relevant code, request, configuration, or runtime behavior in Source Code Review.Findings explain upload endpoint and storage behavior
Scenario 1

What if File type and content validation fails?

Eresus maps this area to real user-flow or delivery-pipeline impact, so the finding is not left as a generic technical label.

Scenario 2

What if Path traversal and archive extraction risk fails?

Eresus maps this area to real user-flow or delivery-pipeline impact, so the finding is not left as a generic technical label.

Scenario 3

What if Storage bucket and access policy fails?

Eresus maps this area to real user-flow or delivery-pipeline impact, so the finding is not left as a generic technical label.

Proof-Driven Methodology

01

Intelligence

Attack surface mapping & asset enumeration

02

Vulnerability Scanning

Penetration testing beyond automated scanners

03

Manual Verification

PoC validation for every finding

04

Remediation Support

Remediation code + free retest

Frequently Asked Questions

What decision does File Upload Code Review clarify?

File Upload Code Review clarifies exploitability, affected workflows, and release impact for Source Code Review with evidence rather than scanner noise.

What evidence is included in File Upload Code Review?

Findings explain upload endpoint and storage behavior Also, Dangerous processing steps are made explicit. Retest criteria and ownership notes are included for closure.

How is this different from an automated scanner report?

Automated findings are not forwarded as-is; false positives are removed, abuse paths are proven, and remediation priority is explained.

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.

Retest Support

Fixes are revalidated within the agreed engagement scope. Remediation guidance and developer-friendly notes are included.

Evidence-Ready Deliverables

Report format designed to support internal review, remediation tracking, and evidence-oriented workflows.

Validate Your Security Posture

Don't rely on scanner outputs. We execute the same techniques real attackers use — in a controlled environment, for you.

Get a Quote