CWE-434
AllowedUnrestricted Upload of File with Dangerous Type
Abstraction: Base · Status: Draft
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
6008 vulnerabilities reference this CWE, most recent first.
GHSA-F9CH-R9J4-JV34
Vulnerability from github – Published: 2025-06-26 18:31 – Updated: 2025-06-26 21:31An issue was discovered on IROAD Dashcam FX2 devices. An unauthenticated file upload endpoint can be leveraged to execute arbitrary commands by uploading a CGI-based webshell. Once a file is uploaded, the attacker can execute commands with root privileges, gaining full control over the dashcam. Additionally, by uploading a netcat (nc) binary, the attacker can establish a reverse shell, maintaining persistent remote and privileged access to the device. This allows complete device takeover.
{
"affected": [],
"aliases": [
"CVE-2025-30131"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-26T17:15:30Z",
"severity": "CRITICAL"
},
"details": "An issue was discovered on IROAD Dashcam FX2 devices. An unauthenticated file upload endpoint can be leveraged to execute arbitrary commands by uploading a CGI-based webshell. Once a file is uploaded, the attacker can execute commands with root privileges, gaining full control over the dashcam. Additionally, by uploading a netcat (nc) binary, the attacker can establish a reverse shell, maintaining persistent remote and privileged access to the device. This allows complete device takeover.",
"id": "GHSA-f9ch-r9j4-jv34",
"modified": "2025-06-26T21:31:21Z",
"published": "2025-06-26T18:31:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30131"
},
{
"type": "WEB",
"url": "https://github.com/geo-chen/IROAD?tab=readme-ov-file#finding-11---cve-2025-30131-unrestricted-webshell"
},
{
"type": "WEB",
"url": "https://www.iroadau.com.au/downloads"
}
],
"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-F9HR-7CFQ-MJG2
Vulnerability from github – Published: 2024-05-30 16:13 – Updated: 2024-05-30 16:13Due to missing file extensions in $GLOBALS['TYPO3_CONF_VARS']['BE'][‘fileDenyPattern’], backend users are allowed to upload .phar, .shtml, .pl or .cgi files which can be executed in certain web server setups. A valid backend user account is needed in order to exploit this vulnerability.
Derivatives of Debian GNU Linux are handling *.phar files as PHP applications since PHP 7.1 (for unofficial packages) and PHP 7.2 (for official packages).
The file extension .shtml is bound to server side includes which are not enabled per default in most common Linux based distributions. File extension .pl and *.cgi require additional handlers to be configured which is also not the case in most common distributions (except for /cgi-bin/ location).
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "typo3/cms-core"
},
"ranges": [
{
"events": [
{
"introduced": "8.0.0"
},
{
"fixed": "8.7.23"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "typo3/cms-core"
},
"ranges": [
{
"events": [
{
"introduced": "9.0.0"
},
{
"fixed": "9.5.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": true,
"github_reviewed_at": "2024-05-30T16:13:05Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "Due to missing file extensions in $GLOBALS[\u0027TYPO3_CONF_VARS\u0027][\u0027BE\u0027][\u2018fileDenyPattern\u2019], backend users are allowed to upload *.phar, *.shtml, *.pl or *.cgi files which can be executed in certain web server setups. A valid backend user account is needed in order to exploit this vulnerability.\n\nDerivatives of Debian GNU Linux are handling *.phar files as PHP applications since PHP 7.1 (for unofficial packages) and PHP 7.2 (for official packages).\n\nThe file extension *.shtml is bound to server side includes which are not enabled per default in most common Linux based distributions. File extension *.pl and *.cgi require additional handlers to be configured which is also not the case in most common distributions (except for /cgi-bin/ location).\n\n",
"id": "GHSA-f9hr-7cfq-mjg2",
"modified": "2024-05-30T16:13:05Z",
"published": "2024-05-30T16:13:05Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/TYPO3-CMS/core/commit/45c311d120c359d54cc918e962c374e774239899"
},
{
"type": "WEB",
"url": "https://github.com/TYPO3-CMS/core/commit/5095084efae471c5fef7b578f2bc8a5060e1e148"
},
{
"type": "WEB",
"url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2019-01-22-7.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/TYPO3-CMS/core"
},
{
"type": "WEB",
"url": "https://typo3.org/security/advisory/typo3-core-sa-2019-008"
}
],
"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:H",
"type": "CVSS_V3"
}
],
"summary": "TYPO3 Arbitrary Code Execution via File List Module"
}
GHSA-F9J4-243J-7P57
Vulnerability from github – Published: 2024-11-04 15:31 – Updated: 2026-04-01 18:32Unrestricted Upload of File with Dangerous Type vulnerability in RainbowLink Inc. All Post Contact Form allows Upload a Web Shell to a Web Server.This issue affects All Post Contact Form: from n/a through 1.7.3.
{
"affected": [],
"aliases": [
"CVE-2024-50523"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-04T14:15:14Z",
"severity": "CRITICAL"
},
"details": "Unrestricted Upload of File with Dangerous Type vulnerability in RainbowLink Inc. All Post Contact Form allows Upload a Web Shell to a Web Server.This issue affects All Post Contact Form: from n/a through 1.7.3.",
"id": "GHSA-f9j4-243j-7p57",
"modified": "2026-04-01T18:32:17Z",
"published": "2024-11-04T15:31:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50523"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/allpost-contactform/vulnerability/wordpress-all-post-contact-form-plugin-1-6-7-arbitrary-file-upload-vulnerability?_s_id=cve"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/vulnerability/allpost-contactform/wordpress-all-post-contact-form-plugin-1-6-7-arbitrary-file-upload-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-F9J6-MP7H-FFW2
Vulnerability from github – Published: 2025-09-08 21:31 – Updated: 2025-09-08 21:31The Doccure theme for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the 'doccure_temp_file_uploader' function in all versions up to, and including, 1.4.8. This makes it possible for authenticated attackers, with subscriber-level and above permissions, to upload arbitrary files on the affected site's server which may make remote code execution possible.
{
"affected": [],
"aliases": [
"CVE-2025-9112"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-08T19:15:37Z",
"severity": "HIGH"
},
"details": "The Doccure theme for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the \u0027doccure_temp_file_uploader\u0027 function in all versions up to, and including, 1.4.8. This makes it possible for authenticated attackers, with subscriber-level and above permissions, to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible.",
"id": "GHSA-f9j6-mp7h-ffw2",
"modified": "2025-09-08T21:31:00Z",
"published": "2025-09-08T21:31:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-9112"
},
{
"type": "WEB",
"url": "https://themeforest.net/item/doccure-medical-wordpress-theme/34329202"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2f38498d-0560-4935-b1f5-1fdb62f49a5b?source=cve"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-F9JF-77VP-42QF
Vulnerability from github – Published: 2024-12-18 21:30 – Updated: 2026-04-01 18:32Unrestricted Upload of File with Dangerous Type vulnerability in VibeThemes WPLMS allows Upload a Web Shell to a Web Server.This issue affects WPLMS: from n/a before 1.9.9.5.2.
{
"affected": [],
"aliases": [
"CVE-2024-56052"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-18T19:15:12Z",
"severity": "CRITICAL"
},
"details": "Unrestricted Upload of File with Dangerous Type vulnerability in VibeThemes WPLMS allows Upload a Web Shell to a Web Server.This issue affects WPLMS: from n/a before 1.9.9.5.2.",
"id": "GHSA-f9jf-77vp-42qf",
"modified": "2026-04-01T18:32:52Z",
"published": "2024-12-18T21:30:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56052"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/wplms_plugin/vulnerability/wordpress-wplms-plugin-1-9-9-5-2-student-arbitrary-file-upload-vulnerability?_s_id=cve"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/wplms-plugin/vulnerability/wordpress-wplms-plugin-1-9-9-5-2-student-arbitrary-file-upload-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-F9Q9-85G5-CWGJ
Vulnerability from github – Published: 2025-03-17 21:30 – Updated: 2025-03-21 15:31A logic issue was addressed with improved file handling. This issue is fixed in visionOS 2.2, watchOS 11.2, tvOS 18.2, macOS Sequoia 15.2, iOS 18.2 and iPadOS 18.2. Restoring a maliciously crafted backup file may lead to modification of protected system files.
{
"affected": [],
"aliases": [
"CVE-2024-54525"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-17T20:15:13Z",
"severity": "HIGH"
},
"details": "A logic issue was addressed with improved file handling. This issue is fixed in visionOS 2.2, watchOS 11.2, tvOS 18.2, macOS Sequoia 15.2, iOS 18.2 and iPadOS 18.2. Restoring a maliciously crafted backup file may lead to modification of protected system files.",
"id": "GHSA-f9q9-85g5-cwgj",
"modified": "2025-03-21T15:31:13Z",
"published": "2025-03-17T21:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-54525"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/121837"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/121839"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/121843"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/121844"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/121845"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-F9RJ-WGVV-C77G
Vulnerability from github – Published: 2023-08-31 15:30 – Updated: 2024-04-04 07:20An arbitrary file upload vulnerability in the Gestione Documentale module of GruppoSCAI RealGimm 1.1.37p38 allows attackers to execute arbitrary code via uploading a crafted file.
{
"affected": [],
"aliases": [
"CVE-2023-41638"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-31T14:15:08Z",
"severity": "HIGH"
},
"details": "An arbitrary file upload vulnerability in the Gestione Documentale module of GruppoSCAI RealGimm 1.1.37p38 allows attackers to execute arbitrary code via uploading a crafted file.",
"id": "GHSA-f9rj-wgvv-c77g",
"modified": "2024-04-04T07:20:38Z",
"published": "2023-08-31T15:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41638"
},
{
"type": "WEB",
"url": "https://github.com/CapgeminiCisRedTeam/Disclosure/blob/f7aafa9fcd4efa30071c7f77d3e9e6b14e92302b/CVE%20PoC/CVE-2023-41638%20%7C%20RealGimm%20-%20RCE%20via%20Unrestricted%20File%20Upload.md"
},
{
"type": "WEB",
"url": "https://github.com/CapgeminiCisRedTeam/Disclosure/blob/main/CVE%20PoC/CVE-ID%20%7C%20RealGimm%20-%20RCE%20via%20Unrestricted%20File%20Upload.md"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-F9XC-7R8V-HF32
Vulnerability from github – Published: 2024-02-13 00:30 – Updated: 2024-02-15 06:31Deserialization of Untrusted Data in Gambio through 4.9.2.0 allows attackers to run arbitrary code via "search" parameter of the Parcelshopfinder/AddAddressBookEntry" function.
{
"affected": [],
"aliases": [
"CVE-2024-23759"
],
"database_specific": {
"cwe_ids": [
"CWE-434",
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-12T22:15:08Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data in Gambio through 4.9.2.0 allows attackers to run arbitrary code via \"search\" parameter of the Parcelshopfinder/AddAddressBookEntry\" function.",
"id": "GHSA-f9xc-7r8v-hf32",
"modified": "2024-02-15T06:31:35Z",
"published": "2024-02-13T00:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-23759"
},
{
"type": "WEB",
"url": "https://herolab.usd.de/security-advisories/usd-2023-0046"
}
],
"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-F9XV-95HG-PXGF
Vulnerability from github – Published: 2025-05-23 15:31 – Updated: 2026-04-28 21:35Unrestricted Upload of File with Dangerous Type vulnerability in mojoomla Hospital Management System allows Upload a Web Shell to a Web Server. This issue affects Hospital Management System: from 47.0(20 through 11.
{
"affected": [],
"aliases": [
"CVE-2025-47663"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-23T13:15:42Z",
"severity": "CRITICAL"
},
"details": "Unrestricted Upload of File with Dangerous Type vulnerability in mojoomla Hospital Management System allows Upload a Web Shell to a Web Server. This issue affects Hospital Management System: from 47.0(20 through 11.",
"id": "GHSA-f9xv-95hg-pxgf",
"modified": "2026-04-28T21:35:39Z",
"published": "2025-05-23T15:31:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47663"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/hospital-management/vulnerability/wordpress-hospital-management-system-plugin-47-0-20-11-2023-arbitrary-file-upload-vulnerability-2?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FC33-JX4W-CHW2
Vulnerability from github – Published: 2025-07-20 09:32 – Updated: 2026-04-29 04:11A vulnerability, which was classified as critical, has been found in Metasoft 美特软件 MetaCRM up to 6.4.2. This issue affects some unknown processing of the file sendfile.jsp. The manipulation of the argument File leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
{
"affected": [],
"aliases": [
"CVE-2025-7877"
],
"database_specific": {
"cwe_ids": [
"CWE-284",
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-20T08:15:24Z",
"severity": "MODERATE"
},
"details": "A vulnerability, which was classified as critical, has been found in Metasoft \u7f8e\u7279\u8f6f\u4ef6 MetaCRM up to 6.4.2. This issue affects some unknown processing of the file sendfile.jsp. The manipulation of the argument File leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.",
"id": "GHSA-fc33-jx4w-chw2",
"modified": "2026-04-29T04:11:27Z",
"published": "2025-07-20T09:32:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-7877"
},
{
"type": "WEB",
"url": "https://github.com/FightingLzn9/vul/blob/main/MetaCRM6-Upload-4.md"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.316991"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.316991"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.611252"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
Mitigation
Generate a new, unique filename for an uploaded file instead of using the user-supplied filename, so that no external input is used at all.[REF-422] [REF-423]
Mitigation MIT-21
Strategy: Enforcement by Conversion
When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
Mitigation
Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically. [REF-423]
Mitigation MIT-5
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
- For example, limiting filenames to alphanumeric characters can help to restrict the introduction of unintended file extensions.
Mitigation
Define a very limited set of allowable extensions and only generate filenames that end in these extensions. Consider the possibility of XSS (CWE-79) before allowing .html or .htm file types.
Mitigation
Strategy: Input Validation
Ensure that only one extension is used in the filename. Some web servers, including some versions of Apache, may process files based on inner extensions so that "filename.php.gif" is fed to the PHP interpreter.[REF-422] [REF-423]
Mitigation
When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.
Mitigation MIT-15
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation
Do not rely exclusively on sanity checks of file contents to ensure that the file is of the expected type and size. It may be possible for an attacker to hide code in some file segments that will still be executed by the server. For example, GIF images may contain a free-form comments field.
Mitigation
Do not rely exclusively on the MIME content type or filename attribute when determining how to render a file. Validating the MIME content type and ensuring that it matches the extension is only a partial solution.
Mitigation MIT-17
Strategy: Environment Hardening
Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
Mitigation MIT-22
Strategy: Sandbox or Jail
- Run the code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
- OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
- This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
- Be careful to avoid CWE-243 and other weaknesses related to jails.
CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs
In applications, particularly web applications, access to functionality is mitigated by an authorization framework. This framework maps Access Control Lists (ACLs) to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application, or can run queries for data that they otherwise not supposed to.