FKIE_CVE-2020-35592

Vulnerability from fkie_nvd - Published: 2021-02-18 20:15 - Updated: 2026-06-17 03:13
Severity
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
Pi-hole 5.0, 5.1, and 5.1.1 allows XSS via the Options header to the admin/ URI. A remote user is able to inject arbitrary web script or HTML due to incorrect sanitization of user-supplied data and achieve a Reflected Cross-Site Scripting attack against other users and steal the session cookie.
References
cve@mitre.orghttps://discourse.pi-hole.net/c/announcements/5Release Notes, Vendor Advisory
cve@mitre.orghttps://n4nj0.github.io/advisories/pi-hole-multiple-vulnerabilities-i/Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://discourse.pi-hole.net/c/announcements/5Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://n4nj0.github.io/advisories/pi-hole-multiple-vulnerabilities-i/Exploit, Third Party Advisory
Impacted products
Vendor Product Version
pi-hole pi-hole 5.0
pi-hole pi-hole 5.1
pi-hole pi-hole 5.1.1
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pi-hole:pi-hole:5.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "CD5CED91-AF0E-4ADE-809E-9AF90A555088",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:pi-hole:pi-hole:5.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "C9012FBB-21B7-4BBB-8651-DF36FAA8F4C2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:pi-hole:pi-hole:5.1.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "84256119-F680-4519-B2DF-FF6B2AD54C65",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Pi-hole 5.0, 5.1, and 5.1.1 allows XSS via the Options header to the admin/ URI. A remote user is able to inject arbitrary web script or HTML due to incorrect sanitization of user-supplied data and achieve a Reflected Cross-Site Scripting attack against other users and steal the session cookie."
    },
    {
      "lang": "es",
      "value": "Pi-hole versiones 5.0, 5.1 y 5.1.1, permite un ataque de tipo XSS por medio del encabezado Options al URI admin/.\u0026#xa0;Un usuario remoto puede inyectar un script web o HTML arbitrario debido a un saneamiento incorrecto de los datos suministrados por el usuario y lograr un ataque de tipo Cross-Site Scripting Reflejado contra otros usuarios y robar la cookie de sesi\u00f3n"
    }
  ],
  "id": "CVE-2020-35592",
  "lastModified": "2026-06-17T03:13:59.913",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "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": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-02-18T20:15:12.370",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://discourse.pi-hole.net/c/announcements/5"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://n4nj0.github.io/advisories/pi-hole-multiple-vulnerabilities-i/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://discourse.pi-hole.net/c/announcements/5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://n4nj0.github.io/advisories/pi-hole-multiple-vulnerabilities-i/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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