Common Weakness Enumeration

CWE-611

Allowed

Improper Restriction of XML External Entity Reference

Abstraction: Base · Status: Draft

API response cwe.mitre.org

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.

1691 vulnerabilities reference this CWE, most recent first.

CVE-2021-43990 (GCVE-0-2021-43990)

Vulnerability from cvelistv5 – Published: 2022-04-20 15:30 – Updated: 2025-04-16 16:29
VLAI
Title
ICSA-22-109-03 FANUC ROBOGUIDE Simulation Platform
Summary
The affected product is vulnerable to a network-based attack by threat actors supplying a crafted, malicious XML payload designed to trigger an external entity reference call.
Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')
Assigner
References
Impacted products
Vendor Product Version
FANUC ROBOGUIDE Affected: All , < v9.40083.00.05 (Rev T) (custom)
Create a notification for this product.
Date Public
2022-04-19 00:00
Credits
Sharon Brizinov with Claroty reported these vulnerabilities to CISA.
Show details on NVD website
To clipboard 

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CVE-2021-41098 (GCVE-0-2021-41098)

Vulnerability from cvelistv5 – Published: 2021-09-27 19:35 – Updated: 2024-08-04 02:59
VLAI
Title
Improper Restriction of XML External Entity Reference (XXE) in Nokogiri on JRuby
Summary
Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri v1.12.4 and earlier, on JRuby only, the SAX parser resolves external entities by default. Users of Nokogiri on JRuby who parse untrusted documents using any of these classes are affected: Nokogiri::XML::SAX::Parse, Nokogiri::HTML4::SAX::Parser or its alias Nokogiri::HTML::SAX::Parser, Nokogiri::XML::SAX::PushParser, and Nokogiri::HTML4::SAX::PushParser or its alias Nokogiri::HTML::SAX::PushParser. JRuby users should upgrade to Nokogiri v1.12.5 or later to receive a patch for this issue. There are no workarounds available for v1.12.4 or earlier. CRuby users are not affected.
Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
sparklemotion nokogiri Affected: < 1.12.5
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-41042 (GCVE-0-2021-41042)

Vulnerability from cvelistv5 – Published: 2022-07-07 20:55 – Updated: 2024-08-04 02:59
VLAI
Summary
In Eclipse Lyo versions 1.0.0 to 4.1.0, a TransformerFactory is initialized with the defaults that do not restrict DTD loading when working with RDF/XML. This allows an attacker to cause an external DTD to be retrieved.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
The Eclipse Foundation Eclipse Lyo Affected: 1.0.0 , < unspecified (custom)
Affected: unspecified , ≤ 4.1.0 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-40722 (GCVE-0-2021-40722)

Vulnerability from cvelistv5 – Published: 2022-01-13 20:27 – Updated: 2024-09-16 22:10
VLAI
Title
AEM Forms Improper Restriction of XML External Entity Reference
Summary
AEM Forms Cloud Service offering, as well as version 6.5.10.0 (and below) are affected by an XML External Entity (XXE) injection vulnerability that could be abused by an attacker to achieve RCE.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference ('XXE') (CWE-611)
Assigner
References
Impacted products
Vendor Product Version
Adobe Experience Manager Affected: unspecified , ≤ 6.5.10.0 (custom)
Affected: unspecified , ≤ None (custom)
Create a notification for this product.
Date Public
2021-12-14 00:00
Show details on NVD website
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CVE-2021-40500 (GCVE-0-2021-40500)

Vulnerability from cvelistv5 – Published: 2021-10-12 14:04 – Updated: 2024-08-04 02:44
VLAI
Summary
SAP BusinessObjects Business Intelligence Platform (Crystal Reports) - versions 420, 430, allows an unauthenticated attacker to exploit missing XML validations at endpoints to read sensitive data. These endpoints are normally exposed over the network and successful exploitation can enable the attacker to retrieve arbitrary files from the server.
Severity
No CVSS data available.
CWE
Assigner
sap
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2021-40439 (GCVE-0-2021-40439)

Vulnerability from cvelistv5 – Published: 2021-10-07 15:50 – Updated: 2024-08-04 02:44
VLAI
Title
Billion Laughs
Summary
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.
Severity
No CVSS data available.
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache OpenOffice Affected: Apache OpenOffice , ≤ 4.1.10 (custom)
Affected: OpenOffice.org , ≤ 3.4 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-40356 (GCVE-0-2021-40356)

Vulnerability from cvelistv5 – Published: 2021-09-14 10:48 – Updated: 2024-08-04 02:44
VLAI
Summary
A vulnerability has been identified in Teamcenter V12.4 (All versions < V12.4.0.8), Teamcenter V13.0 (All versions < V13.0.0.7), Teamcenter V13.1 (All versions < V13.1.0.5), Teamcenter V13.2 (All versions < 13.2.0.2). The application contains a XML External Entity Injection (XXE) vulnerability. This could allow an attacker to view files on the application server filesystem.
Severity
No CVSS data available.
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2021-37178 (GCVE-0-2021-37178)

Vulnerability from cvelistv5 – Published: 2021-08-10 10:35 – Updated: 2024-08-04 01:16
VLAI
Summary
A vulnerability has been identified in Solid Edge SE2021 (All Versions < SE2021MP7). An XML external entity injection vulnerability in the underlying XML parser could cause the affected application to disclose arbitrary files to remote attackers by loading a specially crafted xml file.
Severity
No CVSS data available.
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
Siemens Solid Edge SE2021 Affected: All Versions < SE2021MP7
Create a notification for this product.
Show details on NVD website
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CVE-2021-34706 (GCVE-0-2021-34706)

Vulnerability from cvelistv5 – Published: 2021-10-06 19:46 – Updated: 2024-11-07 21:48
VLAI
Title
Cisco Identity Services Engine XML External Entity Injection Vulnerability
Summary
A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to access sensitive information or conduct a server-side request forgery (SSRF) attack through an affected device. This vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing certain XML files. An attacker could exploit this vulnerability by uploading a crafted XML file that contains references to external entities. A successful exploit could allow the attacker to retrieve files from the local system, resulting in the disclosure of sensitive information, or cause the web application to perform arbitrary HTTP requests on behalf of the attacker.
Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Date Public
2021-10-06 00:00
Show details on NVD website
To clipboard 

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CVE-2021-34436 (GCVE-0-2021-34436)

Vulnerability from cvelistv5 – Published: 2021-09-02 20:55 – Updated: 2024-08-04 00:12
VLAI
Summary
In Eclipse Theia 0.1.1 to 0.2.0, it is possible to exploit the default build to obtain remote code execution (and XXE) via the theia-xml-extension. This extension uses lsp4xml (recently renamed to LemMinX) in order to provide language support for XML. This is installed by default.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
The Eclipse Foundation Eclipse Theia Affected: 0.1.1
Affected: 0.1.2
Affected: 0.2.0-next.28bc2735
Affected: 0.2.0-next.41406d98
Affected: 0.2.0-next.a2958907
Create a notification for this product.
Show details on NVD website
To clipboard 

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              "name": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=563174",
              "refsource": "CONFIRM",
              "url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=563174"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c",
    "assignerShortName": "eclipse",
    "cveId": "CVE-2021-34436",
    "datePublished": "2021-09-02T20:55:10.000Z",
    "dateReserved": "2021-06-09T00:00:00.000Z",
    "dateUpdated": "2024-08-04T00:12:50.189Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}
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.

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