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CVE-2023-51630

Status: ModifiedMedium (6.1)—

Paessler PRTG Network Monitor Cross-Site Scripting Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Paessler PRTG Network Monitor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the web console. The issue results from the lack of proper validation of user-supplied data, which can lead to the injection of an arbitrary script. An attacker can leverage this vulnerability to bypass authentication on the system. . Was ZDI-CAN-21182.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Paessler — Prtg Network Monitor

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-51630",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2023-51630",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-02-09T19:22:15.878574Z"
        }
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    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "zdi-disclosures@trendmicro.com",
        "cvssData": {
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  "published": "2024-02-08T23:15:09.933",
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  "vulnStatus": "Modified",
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      "description": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "Paessler PRTG Network Monitor Cross-Site Scripting Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Paessler PRTG Network Monitor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the web console. The issue results from the lack of proper validation of user-supplied data, which can lead to the injection of an arbitrary script. An attacker can leverage this vulnerability to bypass authentication on the system.\n. Was ZDI-CAN-21182."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de omisión de autenticación de cross-site scripting de Paessler PRTG Network Monitor. Esta vulnerabilidad permite a atacantes remotos evitar la autenticación en las instalaciones afectadas de Paessler PRTG Network Monitor. Se requiere la interacción del usuario para aprovechar esta vulnerabilidad, ya que el objetivo debe visitar una página maliciosa o abrir un archivo malicioso. La falla específica existe en la consola web. El problema se debe a la falta de validación adecuada de los datos proporcionados por el usuario, lo que puede llevar a la inyección de un script arbitrario. Un atacante puede aprovechar esta vulnerabilidad para eludir la autenticación en el sistema. Era ZDI-CAN-21182."
    }
  ],
  "lastModified": "2026-06-17T06:41:21.790",
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        {
          "negate": false,
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