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The expr-eval library is a JavaScript expression parser and evaluator designed to safely evaluate mathematical expressions with user-defined variables. However, due to insufficient input validation, an attacker can pass a crafted context object or use MEMBER of the context object into the evaluate() function and trigger arbitrary code execution.
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OR
*cpe:2.3:a:jorenbroekema:javascript_expression_evaluator:3.0.0:*:*:*:*:node.js:*:*
*cpe:2.3:a:silentmatt:javascript_expression_evaluator:*:*:*:*:*:node.js:*:* versions up to (including) 2.0.2
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Reference Type
CERT/CC: https://github.com/advisories/GHSA-jc85-fpwf-qm7x Types: Third Party Advisory
CVE: https://www.kb.cert.org/vuls/id/263614 Types: Third Party Advisory
CVE Modified by CERT/CC11/20/2025 11:15:56 AM
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Description
The expr-eval library is a JavaScript expression parser and evaluator designed to safely evaluate mathematical expressions with user-defined variables. However, due to insufficient input validation, an attacker can pass a crafted variables object into the evaluate() function and trigger arbitrary code execution.
The expr-eval library is a JavaScript expression parser and evaluator designed to safely evaluate mathematical expressions with user-defined variables. However, due to insufficient input validation, an attacker can pass a crafted context object or use MEMBER of the context object into the evaluate() function and trigger arbitrary code execution.
New CVE Received from CERT/CC11/04/2025 8:15:33 PM
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New Value
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Description
The expr-eval library is a JavaScript expression parser and evaluator designed to safely evaluate mathematical expressions with user-defined variables. However, due to insufficient input validation, an attacker can pass a crafted variables object into the evaluate() function and trigger arbitrary code execution.
Added
Reference
https://github.com/jorenbroekema/expr-eval
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Reference
https://github.com/silentmatt/expr-eval
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Reference
https://github.com/silentmatt/expr-eval/pull/288
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Reference
https://www.npmjs.com/package/expr-eval
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Reference
https://www.npmjs.com/package/expr-eval-fork
Quick Info
CVE Dictionary Entry: CVE-2025-12735 NVD
Published Date: 11/04/2025 NVD
Last Modified: 06/17/2026
Source: CERT/CC