Common Weakness Enumeration

CWE-611

Allowed

Improper Restriction of XML External Entity Reference

Abstraction: Base · Status: Draft

The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

1712 vulnerabilities reference this CWE, most recent first.

GHSA-GVJJ-R993-7FV3

Vulnerability from github – Published: 2022-09-02 00:01 – Updated: 2022-09-08 00:00
VLAI
Details

IBM Cognos Analytics 11.1.7, 11.2.0, and 11.2.1 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 233571.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-36773"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-09-01T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "IBM Cognos Analytics 11.1.7, 11.2.0, and 11.2.1 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 233571.",
  "id": "GHSA-gvjj-r993-7fv3",
  "modified": "2022-09-08T00:00:33Z",
  "published": "2022-09-02T00:01:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36773"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/233571"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20221014-0005"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/6615285"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-GW3G-MV3W-862X

Vulnerability from github – Published: 2022-05-14 01:37 – Updated: 2022-05-14 01:37
VLAI
Details

BI Web Services in SAS Web Infrastructure Platform before 9.4M6 allows XXE.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-20733"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-01-17T01:29:00Z",
    "severity": "HIGH"
  },
  "details": "BI Web Services in SAS Web Infrastructure Platform before 9.4M6 allows XXE.",
  "id": "GHSA-gw3g-mv3w-862x",
  "modified": "2022-05-14T01:37:22Z",
  "published": "2022-05-14T01:37:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20733"
    },
    {
      "type": "WEB",
      "url": "http://support.sas.com/kb/62/987.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-GX4F-976G-7G6V

Vulnerability from github – Published: 2023-03-08 17:19 – Updated: 2023-03-08 17:19
VLAI
Summary
XWiki Platform vulnerable to data leak via Improper Restriction of XML External Entity Reference
Details

Impact

Any user with edit rights on a document can trigger a XAR import on a forged XAR file, leading to the ability to display the content of any file on the XWiki server host.

Example to reproduce: * Create a forget XAR file and inside it, have the following package.xml content: ```xml

]>

&xxe; &xxe; Helper pages for creating and listing Class/Template/Sheets XWiki.Admin ... `` * Upload it onto a wiki page (e.g.XXE) as an attachment (e.g.test.xar). * Call the page usinghttp://localhost:8080/xwiki/bin/view/Main/XXE?sheet=XWiki.AdminImportSheet&file=test.xar`

You'll then notice that the displayed UI contains the content of the /etc/passwd file.

Patches

The vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10-rc-1.

Workarounds

You'd need to get XWiki Platform sources and apply the changes from https://github.com/xwiki/xwiki-platform/commit/e3527b98fdd8dc8179c24dc55e662b2c55199434 to the XarPackage java class and then copy the modified version to your WEB-INF/classes directory (or rebuild the xwiki-platform-xar-model maven module and replace the one found in WEB-INF/lib/).

References

  • https://github.com/xwiki/xwiki-platform/commit/e3527b98fdd8dc8179c24dc55e662b2c55199434
  • https://jira.xwiki.org/browse/XWIKI-20320

For more information

If you have any questions or comments about this advisory: * Open an issue in Jira XWiki.org * Email us at Security Mailing List

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-xar-model"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.1-milestone-3"
            },
            {
              "fixed": "13.10.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-xar-model"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "14.0"
            },
            {
              "fixed": "14.4.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-xar-model"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "14.5"
            },
            {
              "fixed": "14.10-rc-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27480"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-08T17:19:30Z",
    "nvd_published_at": "2023-03-07T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nAny user with edit rights on a document can trigger a XAR import on a forged XAR file, leading to the ability to display the content of any file on the XWiki server host.\n\nExample to reproduce:\n* Create a forget XAR file and inside it, have the following `package.xml` content:\n  ```xml\n  \u003c?xml version=\"1.0\" encoding=\"UTF-8\"?\u003e\n  \u003c!DOCTYPE foo [ \u003c!ENTITY xxe SYSTEM \"file:///etc/passwd\"\u003e ]\u003e\n\n  \u003cpackage\u003e\n  \u003cinfos\u003e\n  \u003cname\u003e\u0026xxe;\u003c/name\u003e\n  \u003cdescription\u003e \u0026xxe; Helper pages for creating and listing Class/Template/Sheets\u003c/description\u003e\n  \u003clicence\u003e\u003c/licence\u003e\n  \u003cauthor\u003eXWiki.Admin\u003c/author\u003e\n  ...\n  ```\n* Upload it onto a wiki page (e.g. `XXE`) as an attachment (e.g. `test.xar`).\n* Call the page using `http://localhost:8080/xwiki/bin/view/Main/XXE?sheet=XWiki.AdminImportSheet\u0026file=test.xar`\n\nYou\u0027ll then notice that the displayed UI contains the content of the `/etc/passwd` file.\n\n### Patches\nThe vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10-rc-1.\n\n### Workarounds\nYou\u0027d need to get XWiki Platform sources and apply the changes from https://github.com/xwiki/xwiki-platform/commit/e3527b98fdd8dc8179c24dc55e662b2c55199434 to the `XarPackage` java class and then copy the modified version to your `WEB-INF/classes` directory (or rebuild the `xwiki-platform-xar-model` maven module and replace the one found in `WEB-INF/lib/`).\n\n### References\n* https://github.com/xwiki/xwiki-platform/commit/e3527b98fdd8dc8179c24dc55e662b2c55199434\n* https://jira.xwiki.org/browse/XWIKI-20320\n\n### For more information\nIf you have any questions or comments about this advisory:\n*    Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n*    Email us at [Security Mailing List](mailto:security@xwiki.org)\n",
  "id": "GHSA-gx4f-976g-7g6v",
  "modified": "2023-03-08T17:19:30Z",
  "published": "2023-03-08T17:19:30Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-gx4f-976g-7g6v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27480"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/e3527b98fdd8dc8179c24dc55e662b2c55199434"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki/xwiki-platform"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XWIKI-20320"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "XWiki Platform vulnerable to data leak via Improper Restriction of XML External Entity Reference"
}

GHSA-GXGF-5573-5Q84

Vulnerability from github – Published: 2022-05-13 01:12 – Updated: 2022-05-13 01:12
VLAI
Details

SolarWinds SFTP/SCP server through 2018-09-10 is vulnerable to XXE via a world readable and writable configuration file that allows an attacker to exfiltrate data.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-16792"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-12-05T22:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "SolarWinds SFTP/SCP server through 2018-09-10 is vulnerable to XXE via a world readable and writable configuration file that allows an attacker to exfiltrate data.",
  "id": "GHSA-gxgf-5573-5q84",
  "modified": "2022-05-13T01:12:18Z",
  "published": "2022-05-13T01:12:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16792"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/fulldisclosure/2018/Dec/0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-GXP6-8FP7-592P

Vulnerability from github – Published: 2022-05-14 01:42 – Updated: 2022-05-14 01:42
VLAI
Details

XR3Player version <= V3.124 contains a XML External Entity (XXE) vulnerability in Playlist parser that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-1000830"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-12-20T15:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "XR3Player version \u003c= V3.124 contains a XML External Entity (XXE) vulnerability in Playlist parser that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.",
  "id": "GHSA-gxp6-8fp7-592p",
  "modified": "2022-05-14T01:42:24Z",
  "published": "2022-05-14T01:42:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1000830"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goxr3plus/XR3Player/issues/9"
    },
    {
      "type": "WEB",
      "url": "https://0dd.zone/2018/10/28/xr3player-XXE"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-GXVP-6GXM-GHQV

Vulnerability from github – Published: 2022-11-23 18:30 – Updated: 2022-11-29 21:30
VLAI
Details

Zoho ManageEngine ServiceDesk Plus versions 13010 and prior are vulnerable to an XML External Entity attack that leads to Information Disclosure.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-40771"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-11-23T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Zoho ManageEngine ServiceDesk Plus versions 13010 and prior are vulnerable to an XML External Entity attack that leads to Information Disclosure.",
  "id": "GHSA-gxvp-6gxm-ghqv",
  "modified": "2022-11-29T21:30:27Z",
  "published": "2022-11-23T18:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40771"
    },
    {
      "type": "WEB",
      "url": "https://manageengine.com"
    },
    {
      "type": "WEB",
      "url": "https://www.manageengine.com/products/service-desk/CVE-2022-40771.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-H22X-HM8G-RXPG

Vulnerability from github – Published: 2022-05-17 00:29 – Updated: 2022-07-01 20:36
VLAI
Summary
Improper Restriction of XML External Entity Reference in Apache OpenNLP
Details

When loading models or dictionaries that contain XML it is possible to perform an XXE attack, since Apache OpenNLP is a library, this only affects applications that load models or dictionaries from untrusted sources. The versions 1.5.0 to 1.5.3, 1.6.0, 1.7.0 to 1.7.2, 1.8.0 to 1.8.1 of Apache OpenNLP are affected.

Show details on source website

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.8.1"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.opennlp:opennlp-tools"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.5.0"
            },
            {
              "fixed": "1.8.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-12620"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-07-01T20:36:40Z",
    "nvd_published_at": "2017-10-03T01:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "When loading models or dictionaries that contain XML it is possible to perform an XXE attack, since Apache OpenNLP is a library, this only affects applications that load models or dictionaries from untrusted sources. The versions 1.5.0 to 1.5.3, 1.6.0, 1.7.0 to 1.7.2, 1.8.0 to 1.8.1 of Apache OpenNLP are affected.",
  "id": "GHSA-h22x-hm8g-rxpg",
  "modified": "2022-07-01T20:36:40Z",
  "published": "2022-05-17T00:29:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12620"
    },
    {
      "type": "WEB",
      "url": "http://opennlp.apache.org/news/cve-2017-12620.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper Restriction of XML External Entity Reference in Apache OpenNLP"
}

GHSA-H2JW-98WW-486C

Vulnerability from github – Published: 2022-05-21 00:00 – Updated: 2022-05-27 00:00
VLAI
Details

A vulnerability has been identified in Teamcenter V12.4 (All versions < V12.4.0.13), Teamcenter V13.0 (All versions < V13.0.0.9). The application contains a XML External Entity Injection (XXE) vulnerability. This could allow an attacker to view files on the application server filesystem.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-29801"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-05-20T13:15:00Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability has been identified in Teamcenter V12.4 (All versions \u003c V12.4.0.13), Teamcenter V13.0 (All versions \u003c V13.0.0.9). The application contains a XML External Entity Injection (XXE) vulnerability. This could allow an attacker to view files on the application server filesystem.",
  "id": "GHSA-h2jw-98ww-486c",
  "modified": "2022-05-27T00:00:24Z",
  "published": "2022-05-21T00:00:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-29801"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-789162.pdf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-H2VQ-7GF2-QW9V

Vulnerability from github – Published: 2022-05-17 00:30 – Updated: 2023-10-23 17:24
VLAI
Summary
Umbraco CMS XXE Vulnerability
Details

XML external entity (XXE) vulnerability in Umbraco CMS before 7.7.3 allows attackers to obtain sensitive information by reading files on the server or sending TCP requests to intranet hosts (aka SSRF), related to Umbraco.Web/umbraco.presentation/umbraco/dialogs/importDocumenttype.aspx.cs.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "UmbracoCms.Web"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.7.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-15280"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-07-26T23:13:52Z",
    "nvd_published_at": "2017-10-12T08:29:00Z",
    "severity": "MODERATE"
  },
  "details": "XML external entity (XXE) vulnerability in Umbraco CMS before 7.7.3 allows attackers to obtain sensitive information by reading files on the server or sending TCP requests to intranet hosts (aka SSRF), related to `Umbraco.Web/umbraco.presentation/umbraco/dialogs/importDocumenttype.aspx.cs`.",
  "id": "GHSA-h2vq-7gf2-qw9v",
  "modified": "2023-10-23T17:24:47Z",
  "published": "2022-05-17T00:30:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-15280"
    },
    {
      "type": "WEB",
      "url": "https://github.com/umbraco/Umbraco-CMS/commit/5dde2efe0d2b3a47d17439e03acabb7ea2befb64"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/umbraco/Umbraco-CMS"
    },
    {
      "type": "WEB",
      "url": "https://github.com/umbraco/Umbraco-CMS/blob/release-7.7.3/src/Umbraco.Web/Umbraco.Web.csproj"
    },
    {
      "type": "WEB",
      "url": "http://issues.umbraco.org/issue/U4-10506"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Umbraco CMS XXE Vulnerability"
}

GHSA-H384-PH77-3699

Vulnerability from github – Published: 2023-03-21 18:30 – Updated: 2023-03-24 22:19
VLAI
Summary
weixin-python XML External Entity vulnerability
Details

A vulnerability was found in zwczou WeChat SDK Python 0.3.0 and classified as critical. This issue affects the function validate/to_xml. The manipulation leads to xml external entity reference. The attack may be initiated remotely. Upgrading to version 0.5.5 is able to address this issue. The name of the patch is e54abadc777715b6dcb545c13214d1dea63df6c9. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-223403.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "weixin-python"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-25082"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-21T22:41:46Z",
    "nvd_published_at": "2023-03-21T18:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "A vulnerability was found in zwczou WeChat SDK Python 0.3.0 and classified as critical. This issue affects the function validate/to_xml. The manipulation leads to xml external entity reference. The attack may be initiated remotely. Upgrading to version 0.5.5 is able to address this issue. The name of the patch is e54abadc777715b6dcb545c13214d1dea63df6c9. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-223403.",
  "id": "GHSA-h384-ph77-3699",
  "modified": "2023-03-24T22:19:53Z",
  "published": "2023-03-21T18:30:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-25082"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zwczou/weixin-python/pull/30"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zwczou/weixin-python/commit/e54abadc777715b6dcb545c13214d1dea63df6c9"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/zwczou/weixin-python"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zwczou/weixin-python/releases/tag/v0.5.5"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.223403"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.223403"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "weixin-python XML External Entity vulnerability"
}

Mitigation
Implementation System Configuration

Many XML parsers and validators can be configured to disable external entity expansion.

CAPEC-221: Data Serialization External Entities Blowup

This attack takes advantage of the entity replacement property of certain data serialization languages (e.g., XML, YAML, etc.) where the value of the replacement is a URI. A well-crafted file could have the entity refer to a URI that consumes a large amount of resources to create a denial of service condition. This can cause the system to either freeze, crash, or execute arbitrary code depending on the URI.