{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:posthog:posthog:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6B26C253-70FC-4364-A9B6-FA8FFE8BDD69",
              "versionEndExcluding": "0.3.7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "PostHog ClickHouse Table Functions SQL Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of PostHog. Authentication is required to exploit this vulnerability.\n\nThe specific flaw exists within the implementation of the SQL parser. The issue results from the lack of proper validation of a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to execute code in the context of the database account. Was ZDI-CAN-25350."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de ejecuci\u00f3n remota de c\u00f3digo por inyecci\u00f3n SQL en PostHog ClickHouse Table Functions. Esta vulnerabilidad permite a atacantes adyacentes a la red ejecutar c\u00f3digo arbitrario en las instalaciones afectadas de PostHog. Se requiere autenticaci\u00f3n para explotar esta vulnerabilidad. La falla espec\u00edfica se encuentra en la implementaci\u00f3n del analizador SQL. El problema se debe a la falta de validaci\u00f3n adecuada de una cadena proporcionada por el usuario antes de usarla para construir consultas SQL. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto de la cuenta de la base de datos. Anteriormente, se denomin\u00f3 ZDI-CAN-25350."
    }
  ],
  "id": "CVE-2025-1520",
  "lastModified": "2025-08-07T18:23:30.827",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.9,
        "source": "zdi-disclosures@trendmicro.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-04-23T17:16:52.250",
  "references": [
    {
      "source": "zdi-disclosures@trendmicro.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/PostHog/posthog/commit/6e8f035f9acd339c5ba87ba6ea40fc1ab3053d42"
    },
    {
      "source": "zdi-disclosures@trendmicro.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-25-099/"
    }
  ],
  "sourceIdentifier": "zdi-disclosures@trendmicro.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ],
      "source": "zdi-disclosures@trendmicro.com",
      "type": "Secondary"
    }
  ]
}