CVE-2023-30543
5.2 · MEDIUM@web3-react is a framework for building Ethereum Apps .
Overview
CVE-2023-30543 is a medium-severity vulnerability. It was published on April 17, 2023 and has a CVSS 3.1 base score of 5.2 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.2, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical description
@web3-react is a framework for building Ethereum Apps . In affected versions the `chainId` may be outdated if the user changes chains as part of the connection flow. This means that the value of `chainId` returned by `useWeb3React()` may be incorrect. In an application, this means that any data derived from `chainId` could be incorrect. For example, if a swapping application derives a wrapped token contract address from the `chainId` *and* a user has changed chains as part of their connection flow the application could cause the user to send funds to the incorrect address when wrapping. This issue has been addressed in PR #749 and is available in updated npm artifacts. There are no known workarounds for this issue. Users are advised to upgrade.
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
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Frequently asked questions
What is CVE-2023-30543?
CVE-2023-30543 is a medium-severity vulnerability. It was published on April 17, 2023 and has a CVSS 3.1 base score of 5.2 (MEDIUM).
How severe is CVE-2023-30543?
This vulnerability has a CVSS 3.1 base score of 5.2, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2023-30543?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-30543?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-30543 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
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