mcp-server-semgrep/semgrep-rules/javascript/lang/security/insecure-object-assign.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: insecure-object-assign
  message: >-
    Depending on the context, user control data in `Object.assign` can cause web response
    to include data that it should not have or can lead to a mass assignment vulnerability.
  metadata:
    cwe:
    - "CWE-601: URL Redirection to Untrusted Site ('Open Redirect')"
    owasp:
    - A01:2021 - Broken Access Control
    references:
    - https://cheatsheetseries.owasp.org/cheatsheets/Mass_Assignment_Cheat_Sheet.html
    - https://en.wikipedia.org/wiki/Mass_assignment_vulnerability
    category: security
    technology:
    - javascript
    subcategory:
    - vuln
    likelihood: LOW
    impact: MEDIUM
    confidence: LOW
  languages:
  - javascript
  - typescript
  severity: WARNING
  mode: taint
  pattern-sources:
  - patterns:
    - pattern: JSON.parse(...)
    - pattern-not: JSON.parse("...",...)
  pattern-sinks:
  - pattern: Object.assign(...)