gsd-2020-25817
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
SilverStripe through 4.6.0-rc1 has an XXE Vulnerability in CSSContentParser. A developer utility meant for parsing HTML within unit tests can be vulnerable to XML External Entity (XXE) attacks. When this developer utility is misused for purposes involving external or user submitted data in custom project code, it can lead to vulnerabilities such as XSS on HTML output rendered through this custom code. This is now mitigated by disabling external entities during parsing. (The correct CVE ID year is 2020 [CVE-2020-25817, not CVE-2021-25817]).
Aliases
Aliases
CVE-2020-25817


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-25817",
    "description": "SilverStripe through 4.6.0-rc1 has an XXE Vulnerability in CSSContentParser. A developer utility meant for parsing HTML within unit tests can be vulnerable to XML External Entity (XXE) attacks. When this developer utility is misused for purposes involving external or user submitted data in custom project code, it can lead to vulnerabilities such as XSS on HTML output rendered through this custom code. This is now mitigated by disabling external entities during parsing. (The correct CVE ID year is 2020 [CVE-2020-25817, not CVE-2021-25817]).",
    "id": "GSD-2020-25817"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-25817"
      ],
      "details": "SilverStripe through 4.6.0-rc1 has an XXE Vulnerability in CSSContentParser. A developer utility meant for parsing HTML within unit tests can be vulnerable to XML External Entity (XXE) attacks. When this developer utility is misused for purposes involving external or user submitted data in custom project code, it can lead to vulnerabilities such as XSS on HTML output rendered through this custom code. This is now mitigated by disabling external entities during parsing. (The correct CVE ID year is 2020 [CVE-2020-25817, not CVE-2021-25817]).",
      "id": "GSD-2020-25817",
      "modified": "2023-12-13T01:21:56.696178Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-25817",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
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                    }
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              "vendor_name": "n/a"
            }
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            "value": "SilverStripe through 4.6.0-rc1 has an XXE Vulnerability in CSSContentParser. A developer utility meant for parsing HTML within unit tests can be vulnerable to XML External Entity (XXE) attacks. When this developer utility is misused for purposes involving external or user submitted data in custom project code, it can lead to vulnerabilities such as XSS on HTML output rendered through this custom code. This is now mitigated by disabling external entities during parsing. (The correct CVE ID year is 2020 [CVE-2020-25817, not CVE-2021-25817])."
          }
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      "references": {
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          {
            "name": "https://www.silverstripe.org/download/security-releases/",
            "refsource": "CONFIRM",
            "url": "https://www.silverstripe.org/download/security-releases/"
          },
          {
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            "refsource": "MISC",
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            "url": "https://www.silverstripe.org/download/security-releases/cve-2020-25817"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c4.6.0",
          "affected_versions": "All versions before 4.6.0",
          "cvss_v2": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-611",
            "CWE-937"
          ],
          "date": "2021-06-17",
          "description": "SilverStripe has an XXE Vulnerability in CSSContentParser. A developer utility meant for parsing HTML within unit tests can be vulnerable to XML External Entity (XXE) attacks. When this developer utility is misused for purposes involving external or user submitted data in custom project code, it can lead to vulnerabilities such as XSS on HTML output rendered through this custom code. This is now mitigated by disabling external entities during parsing.",
          "fixed_versions": [
            "4.6.0"
          ],
          "identifier": "CVE-2020-25817",
          "identifiers": [
            "CVE-2020-25817"
          ],
          "not_impacted": "All versions starting from 4.6.0",
          "package_slug": "packagist/silverstripe/framework",
          "pubdate": "2021-06-08",
          "solution": "Upgrade to version 4.6.0 or above.",
          "title": "Improper Restriction of XML External Entity Reference",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-25817",
            "https://www.silverstripe.org/download/security-releases/",
            "https://www.silverstripe.org/blog/tag/release",
            "https://forum.silverstripe.org/c/releases"
          ],
          "uuid": "017dc052-5a6a-4f24-a986-39f2fdcd1944"
        }
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    },
    "nvd.nist.gov": {
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                "cpe_name": [],
                "versionEndExcluding": "4.6.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:silverstripe:silverstripe:4.6.0:rc1:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
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        ]
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          "ID": "CVE-2020-25817"
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "SilverStripe through 4.6.0-rc1 has an XXE Vulnerability in CSSContentParser. A developer utility meant for parsing HTML within unit tests can be vulnerable to XML External Entity (XXE) attacks. When this developer utility is misused for purposes involving external or user submitted data in custom project code, it can lead to vulnerabilities such as XSS on HTML output rendered through this custom code. This is now mitigated by disabling external entities during parsing. (The correct CVE ID year is 2020 [CVE-2020-25817, not CVE-2021-25817])."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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                  "value": "CWE-611"
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          ]
        },
        "references": {
          "reference_data": [
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              "name": "https://www.silverstripe.org/download/security-releases/",
              "refsource": "CONFIRM",
              "tags": [
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            },
            {
              "name": "https://www.silverstripe.org/blog/tag/release",
              "refsource": "MISC",
              "tags": [
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              ],
              "url": "https://www.silverstripe.org/blog/tag/release"
            },
            {
              "name": "https://forum.silverstripe.org/c/releases",
              "refsource": "MISC",
              "tags": [
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              "url": "https://forum.silverstripe.org/c/releases"
            },
            {
              "name": "https://www.silverstripe.org/download/security-releases/cve-2020-25817",
              "refsource": "MISC",
              "tags": [
                "Broken Link"
              ],
              "url": "https://www.silverstripe.org/download/security-releases/cve-2020-25817"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "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,
          "severity": "LOW",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.7,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2021-06-17T15:47Z",
      "publishedDate": "2021-06-08T18:15Z"
    }
  }
}


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