Upload Info
Upload is the worlds first smart phone web3 application utilizing LiDAR (Light Detection and Ranging) technology to scan real life objects in 3D and convert into a NFT by using your mobile phone.
TrustNet Score
The TrustNet Score evaluates crypto projects based on audit results, security, KYC verification, and social media presence. This score offers a quick, transparent view of a project's credibility, helping users make informed decisions in the Web3 space.
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Summary and Final Words
No crucial issues found
The contract does not contain issues of high or medium criticality. This means that no known vulnerabilities were found in the source code.
Contract owner cannot mint
It is not possible to mint new tokens.
Contract owner cannot blacklist addresses.
It is not possible to lock user funds by blacklisting addresses.
Contract owner can set high fees
Contract owner is able to set fees above 25%. Very high fees can also prevent token transfer.
Token transfer can be locked
Owner can lock user funds with owner functions.
Token cannot be burned
There is no burning within the contract without any allowances
Ownership is not renounced
The owner retains significant control, which could potentially be used to modify key contract parameters.
Scope of Work
This audit encompasses the evaluation of the files listed below, each verified with a SHA-1 Hash. The team referenced above has provided the necessary files for assessment.
The auditing process consists of the following systematic steps:
- Specification Review: Analyze the provided specifications, source code, and instructions to fully understand the smart contract's size, scope, and functionality.
- Manual Code Examination: Conduct a thorough line-by-line review of the source code to identify potential vulnerabilities and areas for improvement.
- Specification Alignment: Ensure that the code accurately implements the provided specifications and intended functionalities.
- Test Coverage Assessment: Evaluate the extent and effectiveness of test cases in covering the codebase, identifying any gaps in testing.
- Symbolic Execution: Analyze the smart contract to determine how various inputs affect execution paths, identifying potential edge cases and vulnerabilities.
- Best Practices Evaluation: Assess the smart contracts against established industry and academic best practices to enhance efficiency, maintainability, and security.
- Actionable Recommendations: Provide detailed, specific, and actionable steps to secure and optimize the smart contracts.
A file with a different Hash has been intentionally or otherwise modified after the security review. A different Hash may indicate a changed condition or potential vulnerability that was not within the scope of this review.
Final Words
The following provides a concise summary of the audit report, accompanied by insightful comments from the auditor. This overview captures the key findings and observations, offering valuable context and clarity.
Ownership Privileges
- The owner can enable trading only once.
- The owner can remove limits from the contract.
- The owner can update the minimum swap threshold between 0.001% to 0.5% of the total supply.
- The owner can update the max transaction and max wallet amount to not less than 0.1% and 0.5% of the total supply, respectively.
- The owner can exclude wallets from the maximum transaction limit.
- The owner can enable disable swapping.
- The owner can update any arbitrary amount in the buy and sell fees.
- The owner can exclude wallets from fees.
- The owner can update the automated market maker pair address.
- The owner can update any arbitrary wallet as marketing, LP, and Dev wallet address.
Note - This Audit report consists of a security analysis of the Upload smart contract. This analysis did not include functional testing (or unit testing) of the contract’s logic. Moreover, we only audited one token contract for the Upload team. Other contracts associated with the project were not audited by our team. We recommend investors do their own research before investing.
Files and details
Functions
public
/
State variables
public
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Total lines
of code
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Capabilities
Hover on items
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Findings and Audit result
medium Issues | 4 findings
Pending
#1 medium Issue
Transfer of tokens without enabling trade.
The trading needs to be enabled by the owner in order for regular users to transfer tokens. On the contrary, the owner can authorize addresses manually and those addresses will be able to trade tokens. This functionality can be exploited in the following way, For example, there is a presale and the wallets used for the presale can be authorized by the owner. All the tokens obtained can be consolidated into a final wallet address and facilitate trading and selling of the acquired tokens, the last wallet address can be authorized.
Pending
#2 medium Issue
Liquidity is added to externally owned address.
The contract's liquidity is automatically added to the 'lpWallet' address, which is not recommended because, in an extreme scenario, this can be used to drain liquidity from the contract.
Pending
#3 medium Issue
The owner can set fees more than 25%.
The owner can set the total buy and sell fees of more than 25% in the contract which is not recommended. The fees in the contract should not be more than 25% so that the user not lose his token values.
Pending
#4 medium Issue
Missing 'require' check. (Potential honeypot)
The owner can set any arbitrary amount to the marketing wallet, LP wallet, and Dev wallet address, including zero address as this can lead to a potential honeypot if the owner has set the address to a contract address that cannot receive ETH. It is recommended that the address cannot be set to a contract address that cannot receive ETH to avoid these circumstances.
low Issues | 5 findings
Pending
#1 low Issue
Local variables shadowing (shadowing-local)
Rename the local variables that shadow another component.
Pending
#2 low Issue
Missing Events Arithmetic (events-maths)
Emit an event for critical parameter changes.
Pending
#3 low Issue
Missing Zero Address Validation (missing-zero-check)
Check that the address is not zero.
Pending
#4 low Issue
Floating pragma solidity version.
Adding the constant version of solidity is recommended, as this prevents the unintentional deployment of a contract with an outdated compiler that contains unresolved bugs.
Pending
#5 low Issue
Remove safemath library
The compiler version above 0.8.0 has the ability to control arithmetic overflow/underflow. It is recommended to remove the unwanted code in order to avoid high gas fees.
optimization Issues | 1 findings
Pending
#1 optimization Issue
Public function that could be declared external (external-function)
Use the `external` attribute for functions never called from the contract.