Vulnerability Details : CVE-2023-34234
OpenZeppelin Contracts is a library for smart contract development. By frontrunning the creation of a proposal, an attacker can become the proposer and gain the ability to cancel it. The attacker can do this repeatedly to try to prevent a proposal from being proposed at all. This impacts the `Governor` contract in v4.9.0 only, and the `GovernorCompatibilityBravo` contract since v4.3.0. This problem has been patched in 4.9.1 by introducing opt-in frontrunning protection. Users are advised to upgrade. Users unable to upgrade may submit the proposal creation transaction to an endpoint with frontrunning protection as a workaround.
Exploit prediction scoring system (EPSS) score for CVE-2023-34234
Probability of exploitation activity in the next 30 days: 0.05%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 14 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2023-34234
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
[email protected] |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
[email protected] |
CWE ids for CVE-2023-34234
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The product does not perform an authorization check when an actor attempts to access a resource or perform an action.Assigned by: [email protected] (Secondary)
References for CVE-2023-34234
Products affected by CVE-2023-34234
- cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:*
- Openzeppelin » Contracts Upgradeable » For Node.jsVersions from including (>=) 4.3.0 and before (<) 4.9.1cpe:2.3:a:openzeppelin:contracts_upgradeable:*:*:*:*:*:node.js:*:*