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CVE-2025-59840 Vega Cross-Site Scripting (XSS) via expressions abusing toString calls in environments using the VEGA_DEBUG global variable

🗓️ 13 Nov 2025 19:54:26Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 15 Views

Vega XSS exploit via toString in global vega; upgrade to Vega 6.2.0+ and avoid attaching to window.

Related
Affected
Refs
[
  {
    "vendor": "vega",
    "product": "vega",
    "versions": [
      {
        "version": "vega < 6.2.0",
        "status": "affected"
      },
      {
        "version": "vega-expression >= 6.0.0, < 6.1.0",
        "status": "affected"
      },
      {
        "version": "vega-expression < 5.2.1",
        "status": "affected"
      },
      {
        "version": "vega-interpreter >= 2.0.0, < 2.2.1",
        "status": "affected"
      },
      {
        "version": "vega-interpreter < 1.2.1",
        "status": "affected"
      }
    ]
  }
]

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