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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

Upgradable Contract Proxy Pattern Security Testing

Focused penetration testing for UUPS, Transparent, and Beacon proxy patterns. We simulate real-world attacks to find vulnerabilities before they compromise your protocol's upgrade path.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built for scale and compliance.

We architect and deploy custom smart contracts on EVM-compatible chains (Ethereum, Polygon, Arbitrum) and Solana. Our code is built for enterprise-grade security and gas efficiency.

  • Full Lifecycle Development: From initial design and Solidity 0.8+/Rust coding to comprehensive testing and mainnet deployment.
  • Security-First: All contracts undergo internal audits and are built with OpenZeppelin standards. We prepare for formal third-party audits.
  • Key Deliverables: ERC-20, ERC-721, ERC-1155 tokens, DeFi protocols (DEX/AMM, staking), DAO governance, and custom business logic.

We deliver auditable, maintainable code that reduces your time-to-market and mitigates critical financial risks.

key-features-cards
COMPREHENSIVE SECURITY ASSESSMENT

Our Proxy Pattern Testing Methodology

We deliver a systematic, multi-layered audit designed to identify critical vulnerabilities in your proxy upgrade architecture, ensuring your smart contracts remain secure and functional through every iteration.

01

Architecture & Initialization Review

We analyze your proxy pattern choice (Transparent, UUPS, Beacon) and verify correct initialization to prevent storage collisions and front-running attacks. This includes a full review of constructor logic and initializer functions.

100%
Pattern Analysis
Zero
Storage Clashes
02

Upgrade Path & Governance Simulation

We simulate the entire upgrade lifecycle, testing timelocks, multi-sig governance, and emergency pause mechanisms to ensure only authorized, non-breaking upgrades can be deployed.

Full
Lifecycle Tested
All
Governance Paths
03

Storage Layout Verification

We perform automated and manual checks to guarantee storage variable alignment between proxy and implementation versions, preventing critical state corruption during upgrades.

Automated
Slither Checks
Manual
Layout Review
04

Function Selector Clash Analysis

We audit all function selectors in the proxy and implementation to prevent malicious collisions that could bypass admin functions or cause unintended behavior.

Exhaustive
Selector Review
Zero
Clashes Tolerated
05

Integration & Fallback Testing

We test interactions with external contracts, delegate calls, and fallback/receive functions to ensure seamless operation post-upgrade and maintain composability.

End-to-End
Integration Test
All
External Calls
06

Final Security Report & Remediation

You receive a detailed report with CVSS-scored vulnerabilities, proof-of-concept exploits, and actionable remediation guidance, followed by re-audit verification.

Detailed
POC Exploits
Guaranteed
Re-Audit
Security Testing Tiers

Comprehensive Attack Simulation Matrix

Our tiered security testing approach for upgradable smart contracts, from foundational audits to continuous adversarial protection.

Attack Vector SimulationStarter AuditProfessional Pen-TestEnterprise Security Suite

Proxy Initialization & Constructor Clashes

Storage Collision & Layout Verification

Function Selector Clashing & Shadowing

Admin Privilege Escalation & Access Control Bypass

Front-running & MEV Exploit Simulations

Governance Attack Vectors (Timelock, Multisig)

Automated Fuzzing & Invariant Testing

Continuous Monitoring & Alerting for Live Upgrades

Incident Response & Hotfix Deployment Support

Typical Engagement Timeline

2-3 weeks

4-6 weeks

Ongoing SLA

Starting Price

$8,000

$25,000

Custom Quote

benefits
process-walkthrough
CORE SERVICES

Smart Contract Development

Secure, production-ready smart contracts built for scale and compliance.

We architect, develop, and audit custom Solidity and Rust smart contracts that form the backbone of your Web3 application. Our focus is on security-first development, leveraging battle-tested patterns from OpenZeppelin and formal verification tools to mitigate risk.

Deliver a secure, audited, and gas-optimized contract suite in as little as 2-4 weeks for an MVP.

  • Token Systems: Custom ERC-20, ERC-721, and ERC-1155 implementations with advanced features like vesting, minting controls, and governance hooks.
  • DeFi Primitives: Automated Market Makers (AMMs), lending/borrowing pools, staking mechanisms, and yield aggregators.
  • Enterprise Logic: Multi-signature wallets, access control systems, and upgradeable proxy patterns for future-proofing.
  • Full Audit Trail: Every contract undergoes internal review and is prepared for third-party audits from firms like CertiK or Trail of Bits.
Transparent Scope & Delivery

Deliverables & Standard Engagement Timeline

A clear breakdown of our security testing packages for upgradable contract proxy patterns, from initial assessment to ongoing protection.

Deliverable / ServiceSecurity ReviewComprehensive AuditEnterprise Security Suite

Proxy Pattern Architecture Review

Storage Collision & Initialization Analysis

Upgrade Function & Admin Control Testing

Full Smart Contract Security Audit

Gas Optimization & Best Practices Report

Remediation Support & Re-Audit

1 round

2 rounds

Unlimited

Post-Deployment Monitoring Setup

Emergency Response SLA

48h

4h

Typical Timeline

1-2 weeks

3-4 weeks

4-6 weeks

Starting Price

$8K

$25K

Custom Quote

Upgradable Contract Security

Frequently Asked Questions

Get clear answers on our methodology, timeline, and security guarantees for proxy pattern testing.

Our testing follows a systematic, three-phase approach. Phase 1: Architecture Review assesses the upgrade mechanism (Transparent, UUPS, Beacon), admin privileges, and initialization logic. Phase 2: Automated Analysis uses Slither and custom tooling to detect storage collisions, selector clashing, and function visibility issues. Phase 3: Manual Review focuses on logic consistency, access control bypasses, and integration risks with external contracts. We deliver a detailed report with CVSS-scored vulnerabilities and remediation guidance.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team