CVE-2021-25827

{
  "id": "CVE-2021-25827",
  "sourceIdentifier": "[email protected]",
  "published": "2023-06-28T20:15:09.397",
  "lastModified": "2026-10-24T13:10:00.147",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Emby Server < 4.7.12.0 is vulnerable to a login bypass attack by setting the X-Forwarded-For header to a local IP-address."
    },
    {
      "lang": "es",
      "value": "Emby Servidor anterior a 4.7.12.0 es vulnerable a un ataque de omisión de inicio de sesión al establecer la cabecera X-Forwarded-For a una dirección IP local."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2024-12-03T16:50:24.601886Z",
          "id": "CVE-2021-25827",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-290"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:emby:emby:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "4.7.12.0",
              "matchCriteriaId": "D8269B6B-081E-4BA9-BF1F-92730FFD72F5"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://emby.media/community/index.php?/topic/98191-emby-server-46-released/",
      "source": "[email protected]",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://github.com/EmbySupport/security/security/advisories/GHSA-fffj-6fr6-3fgf",
      "source": "[email protected]",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://github.com/MediaBrowser/Emby/issues/3784",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://emby.media/community/index.php?/topic/98191-emby-server-46-released/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://github.com/EmbySupport/security/security/advisories/GHSA-fffj-6fr6-3fgf",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://github.com/MediaBrowser/Emby/issues/3784",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ]
    }
  ]
}