SARA / Free Tools / CVE / CVE-2023-30543

CVE-2023-30543 — @web3-react is a framework for building Ethereum Apps

@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 In affected versions the `chainId` may be outdated if the user changes chains as part of the connection flow.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 mean

CVSS
5.2 MEDIUM
EPSS
0.05% (top 83.20%)
CWE
CWE-362
Published
2023-04-17T21:02:20.566Z
Last modified
2025-02-05T20:44:45.955Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:L

01What is this vulnerability?

@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 In affected versions the `chainId` may be outdated if the user changes chains as part of the connection flow.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…

02Affected products

VendorProductVersions
Uniswapweb3react — @web3-react/coinbase-wallet: >= 6, < 8.0.35-beta.0, @web3-react/eip1193: >= 6, < 8.0.27-beta.0, @web3-react/metamask: >= 6, < 8.0.30-beta.0, @web3-react/walletconnect: >= 6, < 8.0.37-beta.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

Want this in your SOAR or SIEM?
SARA's API returns EPSS, CVSS, KEV, and an analyst-grade summary in one call.
Read the API reference →