FKIE_CVE-2017-17454

Vulnerability from fkie_nvd - Published: 2018-02-20 22:29 - Updated: 2026-06-17 01:10
Severity
5.4 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
Mahara 16.10 before 16.10.7 and 17.04 before 17.04.5 and 17.10 before 17.10.2 have a Cross Site Scripting (XSS) vulnerability when a user enters invalid UTF-8 characters. These are now going to be discarded in Mahara along with NULL characters and invalid Unicode characters. Mahara will also avoid direct $_GET and $_POST usage where possible, and instead use param_exists() and the correct param_*() function to fetch the expected value.
References
cve@mitre.orghttps://bugs.launchpad.net/mahara/+bug/1732987Third Party Advisory
cve@mitre.orghttps://mahara.org/interaction/forum/topic.php?id=8149Vendor Advisory
cve@mitre.orghttps://reviews.mahara.org/#/c/8191/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugs.launchpad.net/mahara/+bug/1732987Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://mahara.org/interaction/forum/topic.php?id=8149Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://reviews.mahara.org/#/c/8191/Vendor Advisory
Impacted products
Vendor Product Version
mahara mahara *
mahara mahara *
mahara mahara *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2EC68C57-F2E1-4E20-9E38-99D3218BAC96",
              "versionEndExcluding": "16.10.7",
              "versionStartIncluding": "16.10.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "00BD0F18-7087-4D31-B8E0-159F79C4B13E",
              "versionEndExcluding": "17.04.5",
              "versionStartIncluding": "17.04.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "892E2FAA-F01B-432E-9473-774949895AD7",
              "versionEndExcluding": "17.10.2",
              "versionStartIncluding": "17.10.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mahara 16.10 before 16.10.7 and 17.04 before 17.04.5 and 17.10 before 17.10.2 have a Cross Site Scripting (XSS) vulnerability when a user enters invalid UTF-8 characters. These are now going to be discarded in Mahara along with NULL characters and invalid Unicode characters. Mahara will also avoid direct $_GET and $_POST usage where possible, and instead use param_exists() and the correct param_*() function to fetch the expected value."
    },
    {
      "lang": "es",
      "value": "Mahara 16.10 en versiones anteriores a la 16.10.7, versiones 17.04 anteriores a la 17.04.5 y versiones 17.10 anteriores a la 17.10.2 tiene una vulnerabilidad de Cross Site Scripting (XSS) cuando un usuario introduce caracteres UTF-8 no v\u00e1lidos. Estos ser\u00e1n descartados en Mahara junto con caracteres NULL y caracteres Unicode inv\u00e1lidos. Mahara tambi\u00e9n evitar\u00e1 el uso directo de $_GET y $_POST cuando sea posible; a su vez emplear\u00e1 param_exists() y la funci\u00f3n correcta param_*() para recuperar el valor esperado."
    }
  ],
  "id": "CVE-2017-17454",
  "lastModified": "2026-06-17T01:10:49.253",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-02-20T22:29:00.223",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://bugs.launchpad.net/mahara/+bug/1732987"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://mahara.org/interaction/forum/topic.php?id=8149"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://reviews.mahara.org/#/c/8191/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://bugs.launchpad.net/mahara/+bug/1732987"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://mahara.org/interaction/forum/topic.php?id=8149"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://reviews.mahara.org/#/c/8191/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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