CVE-2025-12735

Published Nov 5, 2025

Last updated 3 months ago

CVSS critical 9.8

npm

Overview

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 context object or use MEMBER of the context object into the evaluate() function and trigger arbitrary code execution.
Source: cret@cert.org
NVD status: Analyzed
Products: javascript_expression_evaluator, javascript_expression_evaluator

Risk scores

CVSS 3.1

Type: Secondary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

nvd@nist.gov: CWE-94

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:jorenbroekema:javascript_expression_evaluator:3.0.0:*:*:*:*:node.js:*:*",
            "matchCriteriaId": "CDE513F1-E3F7-4FA9-BD2B-D310CA8853BD",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:silentmatt:javascript_expression_evaluator:*:*:*:*:*:node.js:*:*",
            "matchCriteriaId": "3236DF0B-3012-4193-82D6-9D73D24D723F",
            "versionEndIncluding": "2.0.2",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.

Overview

Risk scores

CVSS 3.1

Weaknesses

Social media

Configurations

Related CVEs

References