FKIE_CVE-2015-8973

Vulnerability from fkie_nvd - Published: 2017-01-31 22:59 - Updated: 2026-05-13 00:24
Severity
8.3 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Summary
xmlhttp.php in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 allows remote attackers to bypass intended access restrictions via vectors related to the forum password.
References
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2016/11/10/8Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2016/11/18/1Mailing List, Third Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/94397Third Party Advisory, VDB Entry
cve@mitre.orghttps://blog.mybb.com/2015/09/07/mybb-1-8-6-1-6-18-merge-system-1-8-6-release/Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/11/10/8Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/11/18/1Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94397Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://blog.mybb.com/2015/09/07/mybb-1-8-6-1-6-18-merge-system-1-8-6-release/Release Notes, Vendor Advisory
Impacted products
Vendor Product Version
mybb merge_system *
mybb mybb *
mybb mybb 1.8.0
mybb mybb 1.8.1
mybb mybb 1.8.2
mybb mybb 1.8.3
mybb mybb 1.8.4
mybb mybb 1.8.5
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mybb:merge_system:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "22907EC0-5A2D-4DCF-B887-8FA311B3D4E2",
              "versionEndIncluding": "1.8.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2FF6F484-A280-45A6-BB5E-B923339B7109",
              "versionEndIncluding": "1.6.17",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mybb:mybb:1.8.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "E697D13C-5594-491B-B911-3B4BEA00AFCC",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mybb:mybb:1.8.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "00724054-858F-4322-8BE5-F6929CC2CAD8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mybb:mybb:1.8.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "95998F68-1F16-4FEA-BDE3-957235D04881",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mybb:mybb:1.8.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "927F9547-773B-4F2C-8870-AA3672EEC7CA",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mybb:mybb:1.8.4:*:*:*:*:*:*:*",
              "matchCriteriaId": "6817FA9E-51B7-4ADE-86E2-E9F559A585EC",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mybb:mybb:1.8.5:*:*:*:*:*:*:*",
              "matchCriteriaId": "667EFFF1-E5C1-4124-BD0B-D4244FAECE15",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "xmlhttp.php in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 allows remote attackers to bypass intended access restrictions via vectors related to the forum password."
    },
    {
      "lang": "es",
      "value": "xmlhttp.php en MyBB (tambi\u00e9n conocido como MyBulletinBoard) en versiones anteriores a 1.6.18 y 1.8.x en versiones anteriores a 1.8.6 y MyBB Merge System en versiones anteriores a 1.8.6 permite a atacantes remotos eludir las restricciones de acceso previstas a trav\u00e9s de vectores relacionados con la contrase\u00f1a del foro."
    }
  ],
  "id": "CVE-2015-8973",
  "lastModified": "2026-05-13T00:24:29.033",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": true,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 8.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2017-01-31T22:59:00.140",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/11/10/8"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/11/18/1"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/94397"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://blog.mybb.com/2015/09/07/mybb-1-8-6-1-6-18-merge-system-1-8-6-release/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/11/10/8"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/11/18/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/94397"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://blog.mybb.com/2015/09/07/mybb-1-8-6-1-6-18-merge-system-1-8-6-release/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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