Common Weakness Enumeration
CWE-611
AllowedImproper 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.
1696 vulnerabilities reference this CWE, most recent first.
GHSA-C67Q-C83X-F549
Vulnerability from github – Published: 2024-01-24 03:31 – Updated: 2024-09-10 21:31
VLAI
Details
Electronic Deliverables Creation Support Tool (Construction Edition) prior to Ver1.0.4 and Electronic Deliverables Creation Support Tool (Design & Survey Edition) prior to Ver1.0.4 improperly restrict XML external entity references (XXE). By processing a specially crafted XML file, arbitrary files on the system may be read by an attacker.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-21796"
],
"database_specific": {
"cwe_ids": [
"CWE-611"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-24T02:15:07Z",
"severity": "MODERATE"
},
"details": "Electronic Deliverables Creation Support Tool (Construction Edition) prior to Ver1.0.4 and Electronic Deliverables Creation Support Tool (Design \u0026 Survey Edition) prior to Ver1.0.4 improperly restrict XML external entity references (XXE). By processing a specially crafted XML file, arbitrary files on the system may be read by an attacker.",
"id": "GHSA-c67q-c83x-f549",
"modified": "2024-09-10T21:31:37Z",
"published": "2024-01-24T03:31:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21796"
},
{
"type": "WEB",
"url": "https://jvn.jp/en/jp/JVN40049211"
},
{
"type": "WEB",
"url": "https://www.dfeg.mod.go.jp/hp/contents-dfis/tool.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-C758-M683-8FQC
Vulnerability from github – Published: 2022-05-14 01:21 – Updated: 2022-05-14 01:21
VLAI
Details
An XXE issue was discovered in PHPSHE 1.7, which can be used to read any file in the system or scan the internal network without authentication. This occurs because of the call to wechat_getxml in include/plugin/payment/wechat/notify_url.php.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2019-9761"
],
"database_specific": {
"cwe_ids": [
"CWE-611"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-03-14T02:29:00Z",
"severity": "HIGH"
},
"details": "An XXE issue was discovered in PHPSHE 1.7, which can be used to read any file in the system or scan the internal network without authentication. This occurs because of the call to wechat_getxml in include/plugin/payment/wechat/notify_url.php.",
"id": "GHSA-c758-m683-8fqc",
"modified": "2022-05-14T01:21:01Z",
"published": "2022-05-14T01:21:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9761"
},
{
"type": "WEB",
"url": "https://gitee.com/koyshe/phpshe/issues/ITC0C"
}
],
"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-C7W7-9C85-4QXV
Vulnerability from github – Published: 2022-05-24 17:26 – Updated: 2024-09-26 14:12
VLAI
Summary
OpenStack Nova Live migration fails to update persistent domain XML
Details
An issue was discovered in Guest.migrate in virt/libvirt/guest.py in OpenStack Nova before 19.3.1, 20.x before 20.3.1, and 21.0.0. By performing a soft reboot of an instance that has previously undergone live migration, a user may gain access to destination host devices that share the same paths as host devices previously referenced by the virtual machine on the source host. This can include block devices that map to different Cinder volumes at the destination than at the source. Only deployments allowing host-based connections (for instance, root and ephemeral devices) are affected.
Severity
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "nova"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "19.3.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "nova"
},
"ranges": [
{
"events": [
{
"introduced": "20.0.0"
},
{
"fixed": "20.3.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "nova"
},
"versions": [
"21.0.0"
]
}
],
"aliases": [
"CVE-2020-17376"
],
"database_specific": {
"cwe_ids": [
"CWE-611"
],
"github_reviewed": true,
"github_reviewed_at": "2024-04-29T10:57:39Z",
"nvd_published_at": "2020-08-26T19:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in Guest.migrate in `virt/libvirt/guest.py` in OpenStack Nova before 19.3.1, 20.x before 20.3.1, and 21.0.0. By performing a soft reboot of an instance that has previously undergone live migration, a user may gain access to destination host devices that share the same paths as host devices previously referenced by the virtual machine on the source host. This can include block devices that map to different Cinder volumes at the destination than at the source. Only deployments allowing host-based connections (for instance, root and ephemeral devices) are affected.",
"id": "GHSA-c7w7-9c85-4qxv",
"modified": "2024-09-26T14:12:53Z",
"published": "2022-05-24T17:26:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-17376"
},
{
"type": "WEB",
"url": "https://github.com/openstack/nova/commit/1bb8ee95d4c3ddc3f607ac57526b75af1b7fbcff"
},
{
"type": "WEB",
"url": "https://github.com/openstack/nova/commit/2faf17995dd9daa6f0b91e44be43264e447c678d"
},
{
"type": "WEB",
"url": "https://github.com/openstack/nova/commit/a721ca5f510ce3c8ef24f22dac9e475b3d7651db"
},
{
"type": "WEB",
"url": "https://github.com/openstack/nova/commit/b9ea91d17703f5b324a50727b6503ace0f4e95eb"
},
{
"type": "WEB",
"url": "https://github.com/openstack/nova/commit/c438fd9a0eb1903306a53ab44e3ae80660d8a429"
},
{
"type": "PACKAGE",
"url": "https://github.com/openstack/nova"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/nova/PYSEC-2020-243.yaml"
},
{
"type": "WEB",
"url": "https://launchpad.net/bugs/1890501"
},
{
"type": "WEB",
"url": "https://security.openstack.org/ossa/OSSA-2020-006.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2020/08/25/4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "OpenStack Nova Live migration fails to update persistent domain XML"
}
GHSA-C8FQ-23WJ-F2CC
Vulnerability from github – Published: 2024-04-17 00:30 – Updated: 2024-04-17 00:30
VLAI
Details
Vulnerability in the Oracle BI Publisher product of Oracle Analytics (component: XML Services). Supported versions that are affected are 7.0.0.0.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle BI Publisher. Successful attacks of this vulnerability can result in takeover of Oracle BI Publisher. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2024-21082"
],
"database_specific": {
"cwe_ids": [
"CWE-611"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-16T22:15:27Z",
"severity": "CRITICAL"
},
"details": "Vulnerability in the Oracle BI Publisher product of Oracle Analytics (component: XML Services). Supported versions that are affected are 7.0.0.0.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle BI Publisher. Successful attacks of this vulnerability can result in takeover of Oracle BI Publisher. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).",
"id": "GHSA-c8fq-23wj-f2cc",
"modified": "2024-04-17T00:30:56Z",
"published": "2024-04-17T00:30:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21082"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuapr2024.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-C947-VCQX-5WF7
Vulnerability from github – Published: 2025-01-23 03:30 – Updated: 2025-01-23 03:30
VLAI
Details
BigFix Patch Download Plug-ins are affected by an insecure package which is susceptible to XML injection attacks. This allows an attacker to exploit this vulnerability by injecting malicious XML content, which can lead to various issues including denial of service and unauthorized access.
Severity
{
"affected": [],
"aliases": [
"CVE-2024-42185"
],
"database_specific": {
"cwe_ids": [
"CWE-611"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-23T03:15:08Z",
"severity": "LOW"
},
"details": "BigFix Patch Download Plug-ins are affected by an insecure package which is susceptible to XML injection attacks. This allows an attacker to exploit this vulnerability by injecting malicious XML content, which can lead to various issues including denial of service and unauthorized access.",
"id": "GHSA-c947-vcqx-5wf7",
"modified": "2025-01-23T03:30:54Z",
"published": "2025-01-23T03:30:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42185"
},
{
"type": "WEB",
"url": "https://support.hcl-software.com/csm?id=kb_article\u0026sysparm_article=KB0118565"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-C9G5-RM47-4J7P
Vulnerability from github – Published: 2022-05-14 02:20 – Updated: 2022-05-14 02:20
VLAI
Details
In Vuze Bittorrent Client 5.7.6.0, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attackers can use this vulnerability to: (1) Access arbitrary files from the filesystem with the same permission as the user account running Vuze, (2) Initiate SMB connections to capture a NetNTLM challenge/response and crack to cleartext password, or (3) Initiate SMB connections to relay a NetNTLM challenge/response and achieve Remote Command Execution in Windows domains.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2018-13417"
],
"database_specific": {
"cwe_ids": [
"CWE-611"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-08-13T17:29:00Z",
"severity": "CRITICAL"
},
"details": "In Vuze Bittorrent Client 5.7.6.0, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attackers can use this vulnerability to: (1) Access arbitrary files from the filesystem with the same permission as the user account running Vuze, (2) Initiate SMB connections to capture a NetNTLM challenge/response and crack to cleartext password, or (3) Initiate SMB connections to relay a NetNTLM challenge/response and achieve Remote Command Execution in Windows domains.",
"id": "GHSA-c9g5-rm47-4j7p",
"modified": "2022-05-14T02:20:30Z",
"published": "2022-05-14T02:20:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13417"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/45145"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2018/Aug/2"
}
],
"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-C9JJ-3WVG-Q65H
Vulnerability from github – Published: 2019-07-05 21:12 – Updated: 2021-06-15 17:00
VLAI
Summary
Vulnerability that affects org.apache.pdfbox:pdfbox
Details
Apache PDFBox 2.0.14 does not properly initialize the XML parser, which allows context-dependent attackers to conduct XML External Entity (XXE) attacks via a crafted XFDF.
Severity
9.8 (Critical)
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.pdfbox:pdfbox"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.14"
},
{
"fixed": "2.0.15"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2019-0228"
],
"database_specific": {
"cwe_ids": [
"CWE-611"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T21:30:58Z",
"nvd_published_at": "2019-04-17T15:29:00Z",
"severity": "CRITICAL"
},
"details": "Apache PDFBox 2.0.14 does not properly initialize the XML parser, which allows context-dependent attackers to conduct XML External Entity (XXE) attacks via a crafted XFDF.",
"id": "GHSA-c9jj-3wvg-q65h",
"modified": "2021-06-15T17:00:24Z",
"published": "2019-07-05T21:12:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-0228"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-c9jj-3wvg-q65h"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/1a3756557f8cb02790b7183ccf7665ae23f608a421c4f723113bca79@%3Cusers.pdfbox.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/8a19bd6d43e359913341043c2a114f91f9e4ae170059539ad1f5673c@%3Ccommits.tika.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/bc8db1bf459f1ad909da47350ed554ee745abe9f25f2b50cad4e06dd@%3Cserver-dev.james.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/be86fcd7cd423a3fe6b73a3cb9d7cac0b619d0deb99e6b5d172c98f4@%3Ccommits.tika.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r0a2141abeddae66dd57025f1681c8425834062b7c0c7e0b1d830a95d@%3Cusers.pdfbox.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r32b8102392a174b17fd19509a9e76047f74852b77b7bf46af95e45a2@%3Cserver-dev.james.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6HKVPTJWZGUB4MH4AAOWMRJHRDBYFHGJ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/POPOGHJ5CVMUVCRQU7APBAN5IVZGZFDX"
},
{
"type": "WEB",
"url": "https://www.oracle.com//security-alerts/cpujul2021.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2021.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": "Vulnerability that affects org.apache.pdfbox:pdfbox"
}
GHSA-CC4W-3CFF-J8FW
Vulnerability from github – Published: 2023-11-09 09:30 – Updated: 2023-11-30 19:52
VLAI
Summary
Duplicate Advisory: Eclipse IDE XXE in eclipse.platform
Details
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-j24h-xcpc-9jw8. This link is maintained to preserve external references.
Original Description
In Eclipse IDE versions < 2023-09 (4.29) some files with xml content are parsed vulnerable against all sorts of XXE attacks. The user just needs to open any evil project or update an open project with a vulnerable file (for example for review a foreign repository or patch).
Severity
5.0 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.eclipse.platform:eclipse.platform"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.29"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-611"
],
"github_reviewed": true,
"github_reviewed_at": "2023-11-30T19:52:20Z",
"nvd_published_at": "2023-11-09T09:15:08Z",
"severity": "MODERATE"
},
"details": "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-j24h-xcpc-9jw8. This link is maintained to preserve external references.\n\n## Original Description\nIn Eclipse IDE versions \u003c 2023-09 (4.29) some files with xml content are parsed vulnerable against all sorts of XXE attacks. The user just needs to open any evil project or update an open project with a vulnerable file (for example for review a foreign repository or patch).\n",
"id": "GHSA-cc4w-3cff-j8fw",
"modified": "2023-11-30T19:52:20Z",
"published": "2023-11-09T09:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4218"
},
{
"type": "WEB",
"url": "https://github.com/eclipse-emf/org.eclipse.emf/issues/10"
},
{
"type": "WEB",
"url": "https://github.com/eclipse-pde/eclipse.pde/pull/632"
},
{
"type": "WEB",
"url": "https://github.com/eclipse-pde/eclipse.pde/pull/667"
},
{
"type": "WEB",
"url": "https://github.com/eclipse-platform/eclipse.platform.releng.buildtools/pull/45"
},
{
"type": "WEB",
"url": "https://github.com/eclipse-platform/eclipse.platform/pull/761"
},
{
"type": "WEB",
"url": "https://github.com/eclipse-cdt/cdt/commit/c7169b3186d2fef20f97467c3e2ad78e2943ed1b"
},
{
"type": "WEB",
"url": "https://github.com/eclipse-jdt/eclipse.jdt.core/commit/38dd2a878f45cdb3d8d52090f1d6d1b532fd4c4d"
},
{
"type": "WEB",
"url": "https://github.com/eclipse-jdt/eclipse.jdt.ui/commit/13675b1f8a74f47de4da89ed0ded6af7c21dfbec"
},
{
"type": "WEB",
"url": "https://github.com/eclipse-platform/eclipse.platform.swt/commit/bf71db5ddcb967c0863dad4745367b54f49e06ba"
},
{
"type": "WEB",
"url": "https://github.com/eclipse-platform/eclipse.platform.ui/commit/f243cf0a28785b89b7c50bf4e1cce48a917d89bd"
},
{
"type": "WEB",
"url": "https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/8"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Duplicate Advisory: Eclipse IDE XXE in eclipse.platform",
"withdrawn": "2023-11-30T19:52:20Z"
}
GHSA-CC7G-9PCJ-7GWM
Vulnerability from github – Published: 2022-05-24 16:49 – Updated: 2023-12-07 21:27
VLAI
Summary
CodeIgniter Rest Server XXE Vulnerability
Details
CodeIgniter Rest Server (aka codeigniter-restserver) 2.7.1 allows XXE attacks.
Severity
9.8 (Critical)
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 2.7.1"
},
"package": {
"ecosystem": "Packagist",
"name": "chriskacerguis/codeigniter-restserver"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2015-3907"
],
"database_specific": {
"cwe_ids": [
"CWE-611"
],
"github_reviewed": true,
"github_reviewed_at": "2023-07-31T23:30:48Z",
"nvd_published_at": "2019-07-03T21:15:00Z",
"severity": "CRITICAL"
},
"details": "CodeIgniter Rest Server (aka codeigniter-restserver) 2.7.1 allows XXE attacks.",
"id": "GHSA-cc7g-9pcj-7gwm",
"modified": "2023-12-07T21:27:33Z",
"published": "2022-05-24T16:49:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-3907"
},
{
"type": "WEB",
"url": "https://github.com/chriskacerguis/codeigniter-restserver/issues/461"
},
{
"type": "WEB",
"url": "https://github.com/chriskacerguis/codeigniter-restserver/commit/852740e7c636e4f44b3a8e3afc15155795e22c9b"
},
{
"type": "PACKAGE",
"url": "https://github.com/chriskacerguis/codeigniter-restserver"
},
{
"type": "WEB",
"url": "https://kb.hitcon.org/post/127839729207/codeigniter-rest-server-module-xxe-cve-2015-3907"
}
],
"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": "CodeIgniter Rest Server XXE Vulnerability"
}
GHSA-CCGM-3XW4-H5P8
Vulnerability from github – Published: 2021-04-20 16:30 – Updated: 2024-10-09 19:51
VLAI
Summary
Improper Restriction of XML External Entity Reference in pikepdf
Details
models/metadata.py in the pikepdf package 1.3.0 through 2.9.2 for Python allows XXE when parsing XMP metadata entries.
Severity
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "pikepdf"
},
"ranges": [
{
"events": [
{
"introduced": "1.3.0"
},
{
"fixed": "2.10.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-29421"
],
"database_specific": {
"cwe_ids": [
"CWE-611"
],
"github_reviewed": true,
"github_reviewed_at": "2021-04-19T21:54:20Z",
"nvd_published_at": "2021-04-01T20:15:00Z",
"severity": "HIGH"
},
"details": "models/metadata.py in the pikepdf package 1.3.0 through 2.9.2 for Python allows XXE when parsing XMP metadata entries.",
"id": "GHSA-ccgm-3xw4-h5p8",
"modified": "2024-10-09T19:51:42Z",
"published": "2021-04-20T16:30:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-29421"
},
{
"type": "WEB",
"url": "https://github.com/pikepdf/pikepdf/commit/3f38f73218e5e782fe411ccbb3b44a793c0b343a"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-ccgm-3xw4-h5p8"
},
{
"type": "PACKAGE",
"url": "https://github.com/pikepdf/pikepdf"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pikepdf/PYSEC-2021-34.yaml"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36P4HTLBJPO524WMQWW57N3QRF4RFSJG"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QFLBBYGEDNXJ7FS6PIWTVI4T4BUPGEQ"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Improper Restriction of XML External Entity Reference in pikepdf"
}
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.