How severe is CVE-2023-30543?

CVE-2023-30543 has a CVSS 3.x base score of 5.2, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity high, and availability low.

Is CVE-2023-30543 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-30543?

CVE-2023-30543 primarily affects Uniswap Web3-react Coinbase-wallet. In total, 120 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-30543?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-30543 published?

CVE-2023-30543 was published on 2023-04-17 and last updated on 2026-06-17.

CVE-2023-30543

CVE-2023-30543 is a medium-severity vulnerability in Uniswap Web3-react Coinbase-wallet with a CVSS 3.x base score of 5.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.

Key facts

Severity: Medium (CVSS 3.x base score 5.2)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Uniswap Web3-react Coinbase-wallet
Published: 2023-04-17
Last modified: 2026-06-17

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 In affected versions the `chainId` may be outdated if the user changes chains as part of the connection flow.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

Frequently asked questions

What is CVE-2023-30543?: @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.
How severe is CVE-2023-30543?: CVE-2023-30543 has a CVSS 3.x base score of 5.2, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity high, and availability low.
Is CVE-2023-30543 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-30543?: CVE-2023-30543 primarily affects Uniswap Web3-react Coinbase-wallet. In total, 120 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-30543?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-30543 published?: CVE-2023-30543 was published on 2023-04-17 and last updated on 2026-06-17.

References

Affected products (120)

cpe:2.3:a:uniswap:web3-react_coinbase-wallet:*:*:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:7.0.0:alpha0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:7.0.1:alpha0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:7.0.2:alpha0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.22:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.23:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.24:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.25:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.26:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.27:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.28:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.29:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.30:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.31:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.32:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.33:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_coinbase-wallet:8.0.34:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:*:*:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:7.0.0:alpha0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:7.0.1:alpha0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:7.0.2:alpha0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.0:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.1:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.2:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.3:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.4:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.5:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.6:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.7:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.8:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.9:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.10:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.11:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.12:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.13:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.14:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.15:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.16:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.17:beta0:*:*:*:node.js:*:*
cpe:2.3:a:uniswap:web3-react_eip1193:8.0.18:beta0:*:*:*:node.js:*:*

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