FKIE_CVE-2026-30048

Vulnerability from fkie_nvd - Published: 2026-03-18 18:16 - Updated: 2026-03-19 15:16
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
A stored cross-site scripting (XSS) vulnerability exists in the NotChatbot WebChat widget thru 1.4.4. User-supplied input is not properly sanitized before being stored and rendered in the chat conversation history. This allows an attacker to inject arbitrary JavaScript code which is executed when the chat history is reloaded. The issue is reproducible across multiple independent implementations of the widget, indicating that the vulnerability resides in the product itself rather than in a specific website configuration.
References
cve@mitre.orghttps://app.unpkg.com/@developer.notchatbot/webchat@1.4.4
cve@mitre.orghttps://gist.github.com/0xN4no/0601f398942a29259d217ea650f694fe
cve@mitre.orghttps://github.com/0xN4no/CVE-2026-30048
cve@mitre.orghttps://www.npmjs.com/package/@developer.notchatbot/webchat
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A stored cross-site scripting (XSS) vulnerability exists in the NotChatbot WebChat widget thru 1.4.4. User-supplied input is not properly sanitized before being stored and rendered in the chat conversation history. This allows an attacker to inject arbitrary JavaScript code which is executed when the chat history is reloaded. The issue is reproducible across multiple independent implementations of the widget, indicating that the vulnerability resides in the product itself rather than in a specific website configuration."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de cross-site scripting (XSS) almacenado existe en el widget NotChatbot WebChat hasta la versi\u00f3n 1.4.4. La entrada proporcionada por el usuario no se sanitiza correctamente antes de ser almacenada y renderizada en el historial de conversaci\u00f3n del chat. Esto permite a un atacante inyectar c\u00f3digo JavaScript arbitrario que se ejecuta cuando se recarga el historial del chat. El problema es reproducible en m\u00faltiples implementaciones independientes del widget, lo que indica que la vulnerabilidad reside en el producto mismo en lugar de en una configuraci\u00f3n espec\u00edfica del sitio web."
    }
  ],
  "id": "CVE-2026-30048",
  "lastModified": "2026-03-19T15:16:25.820",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-18T18:16:27.607",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://app.unpkg.com/@developer.notchatbot/webchat@1.4.4"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://gist.github.com/0xN4no/0601f398942a29259d217ea650f694fe"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/0xN4no/CVE-2026-30048"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.npmjs.com/package/@developer.notchatbot/webchat"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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