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CVE-2007-2836

Status: ModifiedMedium (6.4)—

Directory traversal vulnerability in session.rb in Hiki 0.8.0 through 0.8.6 allows remote attackers to delete arbitrary files via directory traversal sequences in the session ID, which is matched against an insufficiently restrictive regular expression before it is used to construct a filename that is marked for deletion at logout.

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).

Affected technologies (1)

Hiki — Hiki

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2007-2836",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-07-02T19:30:00.000",
  "references": [
    {
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=430691",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://hikiwiki.org/en/advisory20070624.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://hikiwiki.org/hiki-0_8_6.patch",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://jvn.jp/jp/JVN%2305187780/index.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://osvdb.org/37469",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/25764",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/25874",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.debian.org/security/2007/dsa-1324",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/24603",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/2304",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/35029",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=430691",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://hikiwiki.org/en/advisory20070624.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://hikiwiki.org/hiki-0_8_6.patch",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://jvn.jp/jp/JVN%2305187780/index.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://osvdb.org/37469",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/25764",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/25874",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2007/dsa-1324",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/24603",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/2304",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/35029",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Directory traversal vulnerability in session.rb in Hiki 0.8.0 through 0.8.6 allows remote attackers to delete arbitrary files via directory traversal sequences in the session ID, which is matched against an insufficiently restrictive regular expression before it is used to construct a filename that is marked for deletion at logout."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de salto de directorio en session.rb en Hiki 0.8.0 hasta 0.8.6 permite a atacantes remotos borrar ficheros de su elección mediante secuencias de salto de directorio en el ID de sesión, el cual es comprobado contra una expresión regular que no es suficientemente restrictiva antes de ser usado para construir un nombre de fichero que es marcado para el borrado al finalizar la sesión."
    }
  ],
  "lastModified": "2026-06-16T22:40:32.140",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:hiki:hiki:0.8.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8A025628-6766-4402-A9B5-EE8983BC0283"
            },
            {
              "criteria": "cpe:2.3:a:hiki:hiki:0.8.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BAEBA2F7-AA11-448B-AB89-77A2B51426C5"
            },
            {
              "criteria": "cpe:2.3:a:hiki:hiki:0.8.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3F760D12-A498-4E19-8D54-A7D46709B757"
            },
            {
              "criteria": "cpe:2.3:a:hiki:hiki:0.8.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "773C25D4-1992-443D-BC7F-DA9100B316BA"
            },
            {
              "criteria": "cpe:2.3:a:hiki:hiki:0.8.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1ECEE236-A043-419B-8AE3-8A364594610E"
            },
            {
              "criteria": "cpe:2.3:a:hiki:hiki:0.8.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F87C406F-C01A-4A4D-9CCA-CF646BABFE46"
            },
            {
              "criteria": "cpe:2.3:a:hiki:hiki:0.8.6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B5D70575-4E6B-4E28-BF4F-C545E3FF47CE"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "evaluatorSolution": "The vendor has addressed this issue through a product update: http://prdownloads.sourceforge.jp/hiki/25954/hiki-0.8.7.tar.gz\r\n\r\n"
}