CVE-2026-78850

{
  "id": "CVE-2026-78850",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-15T17:17:28.513",
  "lastModified": "2026-10-26T14:16:40.480",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [
    {
      "sourceIdentifier": "[email protected]",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue in Matomo v.5.11.2 allows a remote attacker to obtain sensitive information via the SiteContentDetector / SitesManager component. NOTE: the Supplier disputes the relevance of this report because the site administrator is a trusted party, and would not plausibly set main_url to a URL that offers additional information to an adversary."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
          "baseScore": 5.0,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-15T17:48:05.284989Z",
          "id": "CVE-2026-78850",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/SLO-CYBER-SEC/CVE-2026-78850",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/matomo-org/matomo",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/matomo-org/matomo/pull/24834",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/matomo-org/matomo/security/advisories",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/matomo-org/matomo/tree/5.11.2",
      "source": "[email protected]"
    },
    {
      "url": "https://matomo.org/",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/SLO-CYBER-SEC/CVE-2026-78850",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}