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CVE-2018-1000533

Status: ModifiedCritical (9.8)—💥 Exploit

klaussilveira GitList version <= 0.6 contains a Passing incorrectly sanitized input to system function vulnerability in `searchTree` function that can result in Execute any code as PHP user. This attack appear to be exploitable via Send POST request using search form. This vulnerability appears to have been fixed in 0.7 after commit 87b8c26b023c3fc37f0796b14bb13710f397b322.

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).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

Affected technologies (1)

Gitlist — Gitlist

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-1000533",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-06-26T16:29:01.883",
  "references": [
    {
      "url": "https://github.com/klaussilveira/gitlist/commit/87b8c26b023c3fc37f0796b14bb13710f397b322",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.szurek.pl/exploit-bypass-php-escapeshellarg-escapeshellcmd.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/klaussilveira/gitlist/commit/87b8c26b023c3fc37f0796b14bb13710f397b322",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.szurek.pl/exploit-bypass-php-escapeshellarg-escapeshellcmd.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "klaussilveira GitList version <= 0.6 contains a Passing incorrectly sanitized input to system function vulnerability in `searchTree` function that can result in Execute any code as PHP user. This attack appear to be exploitable via Send POST request using search form. This vulnerability appears to have been fixed in 0.7 after commit 87b8c26b023c3fc37f0796b14bb13710f397b322."
    },
    {
      "lang": "es",
      "value": "klaussilveira GitList iguales o anteriores a la 0.6 contiene una vulnerabilidad de paso de entradas saneadas de forma incorrecta a una función del sistema en la función \"searchTree\" que puede resultar en la ejecución de cualquier código como usuario PHP. El ataque parece ser explotable mediante el envío de peticiones POST mediante el formulario de búsqueda. La vulnerabilidad parece haber sido solucionada en la versión 0.7 tras el commit con ID 87b8c26b023c3fc37f0796b14bb13710f397b322."
    }
  ],
  "lastModified": "2026-06-17T01:32:51.507",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gitlist:gitlist:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CDB52367-E17B-455D-A9E1-313F27F88AB8",
              "versionEndIncluding": "0.6.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}