CVSS 3.1 Score 9.3 of 10 (high)


Published Oct 12, 2023
Updated: Oct 24, 2023
CWE ID 697
CWE ID 184


CVE-2023-45133 is a critical vulnerability in Babel, a JavaScript compiler. The vulnerability affects the @babel/traverse module prior to versions 7.23.2 and 8.0.0-alpha.4, as well as all versions of babel-traverse. It can be exploited by an attacker through specifically crafted code to execute arbitrary code during compilation when using plugins that rely on the path.evaluate() or path.evaluateTruthy() methods. Notable affected plugins include @babel/plugin-transform-runtime and @babel/preset-env with the useBuiltIns option, as well as certain "polyfill provider" plugins such as babel-plugin-polyfill-corejs3. The issue has been addressed in the fixed versions of @babel/traverse. Organizations that only compile trusted code are not impacted. The vulnerability has a base severity rating of CRITICAL, with a base score of 9.3 according to CVSS:3.1.

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