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.

1821 vulnerabilities reference this CWE, most recent first.

GHSA-7358-GHCM-C3FF

Vulnerability from github – Published: 2022-09-13 00:00 – Updated: 2022-09-16 00:00
VLAI
Details

Improper Restriction of XML External Entity Reference ('XXE') vulnerability in the Policy Engine of Forcepoint Data Loss Prevention (DLP), which is also leveraged by Forcepoint One Endpoint (F1E), Web Security Content Gateway, Email Security with DLP enabled, and Cloud Security Gateway prior to June 20, 2022. The XML parser in the Policy Engine was found to be improperly configured to support external entities and external DTD (Document Type Definitions), which can lead to an XXE attack. This issue affects: Forcepoint Data Loss Prevention (DLP) versions prior to 8.8.2. Forcepoint One Endpoint (F1E) with Policy Engine versions prior to 8.8.2. Forcepoint Web Security Content Gateway versions prior to 8.5.5. Forcepoint Email Security with DLP enabled versions prior to 8.5.5. Forcepoint Cloud Security Gateway prior to June 20, 2022.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-1700"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-09-12T19:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Improper Restriction of XML External Entity Reference (\u0027XXE\u0027) vulnerability in the Policy Engine of Forcepoint Data Loss Prevention (DLP), which is also leveraged by Forcepoint One Endpoint (F1E), Web Security Content Gateway, Email Security with DLP enabled, and Cloud Security Gateway prior to June 20, 2022. The XML parser in the Policy Engine was found to be improperly configured to support external entities and external DTD (Document Type Definitions), which can lead to an XXE attack. This issue affects: Forcepoint Data Loss Prevention (DLP) versions prior to 8.8.2. Forcepoint One Endpoint (F1E) with Policy Engine versions prior to 8.8.2. Forcepoint Web Security Content Gateway versions prior to 8.5.5. Forcepoint Email Security with DLP enabled versions prior to 8.5.5. Forcepoint Cloud Security Gateway prior to June 20, 2022.",
  "id": "GHSA-7358-ghcm-c3ff",
  "modified": "2022-09-16T00:00:33Z",
  "published": "2022-09-13T00:00:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1700"
    },
    {
      "type": "WEB",
      "url": "https://help.forcepoint.com/security/CVE/CVE-2022-1700.html"
    }
  ],
  "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"
    }
  ]
}

GHSA-73F3-RQQF-2J54

Vulnerability from github – Published: 2026-02-03 18:30 – Updated: 2026-02-03 19:53
VLAI
Summary
Apache Syncope: Console XXE on Keymaster parameters
Details

Improper Restriction of XML External Entity Reference vulnerability in Apache Syncope Console. An administrator with adequate entitlements to create or edit Keymaster parameters via Console can construct malicious XML text to launch an XXE attack, thereby causing sensitive data leakage occurs.

This issue affects Apache Syncope: from 3.0 through 3.0.15, from 4.0 through 4.0.3.

Users are recommended to upgrade to version 3.0.16 / 4.0.4, which fix this issue.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.syncope.client.idrepo:syncope-client-idrepo-console"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.0.16"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.syncope.client.idrepo:syncope-client-idrepo-console"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-23795"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-03T19:53:38Z",
    "nvd_published_at": "2026-02-03T16:16:13Z",
    "severity": "MODERATE"
  },
  "details": "Improper Restriction of XML External Entity Reference vulnerability in Apache Syncope Console. An administrator with adequate entitlements to create or edit Keymaster parameters via Console can construct malicious XML text to launch an XXE attack, thereby causing sensitive data leakage occurs.\n\nThis issue affects Apache Syncope: from 3.0 through 3.0.15, from 4.0 through 4.0.3.\n\nUsers are recommended to upgrade to version 3.0.16 / 4.0.4, which fix this issue.",
  "id": "GHSA-73f3-rqqf-2j54",
  "modified": "2026-02-03T19:53:38Z",
  "published": "2026-02-03T18:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23795"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/syncope"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/mzgbdn8hzk8vr94o660njcc7w62c2pos"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/02/02/2"
    }
  ],
  "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"
    }
  ],
  "summary": "Apache Syncope: Console XXE on Keymaster parameters"
}

GHSA-744R-VV2G-2X6G

Vulnerability from github – Published: 2019-12-02 18:17 – Updated: 2021-06-15 17:22
VLAI
Summary
Apache NiFi information disclosure by XXE
Details

The XMLFileLookupService in NiFi versions 1.3.0 to 1.9.2 allowed trusted users to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE) and reveal information such as the versions of Java, Jersey, and Apache that the NiFI instance uses.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.nifi:nifi-security"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.3.0"
            },
            {
              "fixed": "1.10.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.nifi:nifi"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.3.0"
            },
            {
              "fixed": "1.10.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-10080"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2019-12-02T17:27:21Z",
    "nvd_published_at": "2019-11-19T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The XMLFileLookupService in NiFi versions 1.3.0 to 1.9.2 allowed trusted users to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE) and reveal information such as the versions of Java, Jersey, and Apache that the NiFI instance uses.",
  "id": "GHSA-744r-vv2g-2x6g",
  "modified": "2021-06-15T17:22:36Z",
  "published": "2019-12-02T18:17:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10080"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/nifi/pull/3507"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b@%3Ccommits.nifi.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://nifi.apache.org/security.html#CVE-2019-10080"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache NiFi information disclosure by XXE"
}

GHSA-74F5-7PJW-4CGF

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

In Traccar Server version 4.2, protocol/SpotProtocolDecoder.java might allow XXE attacks.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-5748"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-01-09T17:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "In Traccar Server version 4.2, protocol/SpotProtocolDecoder.java might allow XXE attacks.",
  "id": "GHSA-74f5-7pjw-4cgf",
  "modified": "2022-05-14T01:37:57Z",
  "published": "2022-05-14T01:37:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5748"
    },
    {
      "type": "WEB",
      "url": "https://github.com/traccar/traccar/commit/d7f6c53fd88635885914013649b6807ec53227bf"
    },
    {
      "type": "WEB",
      "url": "https://www.traccar.org/blog"
    }
  ],
  "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"
    }
  ]
}

GHSA-74G4-5HCH-J7RM

Vulnerability from github – Published: 2022-05-24 19:09 – Updated: 2022-05-24 19:09
VLAI
Details

XML External Entity vulnerability in Micro Focus Verastream Host Integrator, affecting version 7.8 Update 1 and earlier versions. The vulnerability could allow the control of web browser and hijacking user sessions.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-22523"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-07-22T12:15:00Z",
    "severity": "HIGH"
  },
  "details": "XML External Entity vulnerability in Micro Focus Verastream Host Integrator, affecting version 7.8 Update 1 and earlier versions. The vulnerability could allow the control of web browser and hijacking user sessions.",
  "id": "GHSA-74g4-5hch-j7rm",
  "modified": "2022-05-24T19:09:02Z",
  "published": "2022-05-24T19:09:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22523"
    },
    {
      "type": "WEB",
      "url": "https://support.microfocus.com/kb/doc.php?id=7025169"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-756F-MJWR-H9X4

Vulnerability from github – Published: 2022-05-14 03:31 – Updated: 2022-05-14 03:31
VLAI
Details

textpattern version version 4.6.2 contains a XML Injection vulnerability in Import XML feature that can result in Denial of service in context to the web server by exhausting server memory resources. This attack appear to be exploitable via Uploading a specially crafted XML file.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-1000090"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-03-13T15:29:00Z",
    "severity": "HIGH"
  },
  "details": "textpattern version version 4.6.2 contains a XML Injection vulnerability in Import XML feature that can result in Denial of service in context to the web server by exhausting server memory resources. This attack appear to be exploitable via Uploading a specially crafted XML file.",
  "id": "GHSA-756f-mjwr-h9x4",
  "modified": "2022-05-14T03:31:37Z",
  "published": "2022-05-14T03:31:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1000090"
    },
    {
      "type": "WEB",
      "url": "https://github.com/textpattern/textpattern/issues/1141"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-7579-Q6RQ-WF6R

Vulnerability from github – Published: 2022-05-24 19:16 – Updated: 2022-05-24 19:16
VLAI
Details

Apache OpenOffice has a dependency on expat software. Versions prior to 2.1.0 were subject to CVE-2013-0340 a "Billion Laughs" entity expansion denial of service attack and exploit via crafted XML files. ODF files consist of a set of XML files. All versions of Apache OpenOffice up to 4.1.10 are subject to this issue. expat in version 4.1.11 is patched.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-40439"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-10-07T16:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Apache OpenOffice has a dependency on expat software. Versions prior to 2.1.0 were subject to CVE-2013-0340 a \"Billion Laughs\" entity expansion denial of service attack and exploit via crafted XML files. ODF files consist of a set of XML files. All versions of Apache OpenOffice up to 4.1.10 are subject to this issue. expat in version 4.1.11 is patched.",
  "id": "GHSA-7579-q6rq-wf6r",
  "modified": "2022-05-24T19:16:54Z",
  "published": "2022-05-24T19:16:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-40439"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r41eca5f4f09e74436cbb05dec450fc2bef37b5d3e966aa7cc5fada6d@%3Cannounce.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rfb2c193360436e230b85547e85a41bea0916916f96c501f5b6fc4702%40%3Cusers.openoffice.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rfb2c193360436e230b85547e85a41bea0916916f96c501f5b6fc4702@%3Cusers.openoffice.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/10/07/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-757M-6669-CRWX

Vulnerability from github – Published: 2026-09-16 21:32 – Updated: 2026-09-16 21:32
VLAI
Details

A vulnerability in an API of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to read specific files on the underlying operating system of an affected device.

This vulnerability is due to improper restriction of XML external entity references. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to read specific files on the affected system that the underlying process has permission to access.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-76446"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-16T21:17:20Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in an API of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to read specific\u0026nbsp;files on the underlying operating system of an affected device.\n\nThis vulnerability is due to improper restriction of XML external entity references. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to read specific\u0026nbsp;files on the affected system that the underlying process has permission to access.",
  "id": "GHSA-757m-6669-crwx",
  "modified": "2026-09-16T21:32:51Z",
  "published": "2026-09-16T21:32:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76446"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multiauth-bypass-sgD2HbL4"
    }
  ],
  "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-75P2-HGW4-G7F7

Vulnerability from github – Published: 2022-05-24 17:12 – Updated: 2023-09-26 20:43
VLAI
Summary
AutoUpdater.NET allows XXE
Details

AutoUpdater.cs in AutoUpdater.NET before 1.5.8 allows XXE.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "Autoupdater.NET.Official"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.5.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-20627"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-07-18T22:29:18Z",
    "nvd_published_at": "2020-03-23T17:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "AutoUpdater.cs in AutoUpdater.NET before 1.5.8 allows XXE.",
  "id": "GHSA-75p2-hgw4-g7f7",
  "modified": "2023-09-26T20:43:47Z",
  "published": "2022-05-24T17:12:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20627"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ravibpatel/AutoUpdater.NET/commit/1dc25f2bea6ea522dbac1512b5563c4746d539c3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ravibpatel/AutoUpdater.NET"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ravibpatel/AutoUpdater.NET/releases/tag/v1.5.8"
    },
    {
      "type": "WEB",
      "url": "https://www.doyler.net/security-not-included/autoupdater-net-vulnerability"
    }
  ],
  "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": "AutoUpdater.NET allows XXE"
}

GHSA-75VW-3M5V-FPRH

Vulnerability from github – Published: 2022-01-21 23:43 – Updated: 2026-04-14 23:55
VLAI
Summary
corenlp is vulnerable to Improper Restriction of XML External Entity Reference
Details

corenlp is vulnerable to Improper Restriction of XML External Entity Reference

Show details on source website

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.3.2"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "edu.stanford.nlp:stanford-corenlp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-0239"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-01-19T15:02:11Z",
    "nvd_published_at": "2022-01-17T07:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "corenlp is vulnerable to Improper Restriction of XML External Entity Reference",
  "id": "GHSA-75vw-3m5v-fprh",
  "modified": "2026-04-14T23:55:03Z",
  "published": "2022-01-21T23:43:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0239"
    },
    {
      "type": "WEB",
      "url": "https://github.com/stanfordnlp/CoreNLP/pull/1242"
    },
    {
      "type": "WEB",
      "url": "https://github.com/stanfordnlp/CoreNLP/commit/f44e693882812b144e09d39850177ff0a1f8d16f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/stanfordnlp/corenlp/commit/1940ffb938dc4f3f5bc5f2a2fd8b35aabbbae3dd"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/stanfordnlp/corenlp"
    },
    {
      "type": "WEB",
      "url": "https://huntr.dev/bounties/a717aec2-5646-4a5f-ade0-dadc25736ae3"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-JAVA-EDUSTANFORDNLP-2342121"
    }
  ],
  "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": "corenlp is vulnerable to Improper Restriction of XML External Entity Reference"
}

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.