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.
6006 vulnerabilities reference this CWE, most recent first.
GHSA-72FX-896J-273R
Vulnerability from github – Published: 2022-05-24 16:55 – Updated: 2024-04-04 01:52The crelly-slider plugin before 1.3.5 for WordPress has arbitrary file upload via a PHP file inside a ZIP archive to wp_ajax_crellyslider_importSlider.
{
"affected": [],
"aliases": [
"CVE-2019-15866"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-03T12:15:00Z",
"severity": "HIGH"
},
"details": "The crelly-slider plugin before 1.3.5 for WordPress has arbitrary file upload via a PHP file inside a ZIP archive to wp_ajax_crellyslider_importSlider.",
"id": "GHSA-72fx-896j-273r",
"modified": "2024-04-04T01:52:25Z",
"published": "2022-05-24T16:55:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-15866"
},
{
"type": "WEB",
"url": "https://blog.nintechnet.com/arbitrary-file-upload-vulnerability-in-wordpress-crelly-slider-plugin"
},
{
"type": "WEB",
"url": "https://wordpress.org/plugins/crelly-slider/#developers"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-72HG-5WR5-RMFC
Vulnerability from github – Published: 2023-11-12 15:57 – Updated: 2023-11-12 15:57Impact
On front-end forms with an asset upload field, PHP files crafted to look like images may be uploaded regardless of mime validation rules. This only affects forms using the "Forms" feature and not just any arbitrary form. This does not affect the control panel.
Patches
It has been patched in 3.4.13 and 4.33.0.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "statamic/cms"
},
"ranges": [
{
"events": [
{
"introduced": "4.0.0"
},
{
"fixed": "4.33.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "statamic/cms"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.13"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-47129"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": true,
"github_reviewed_at": "2023-11-12T15:57:58Z",
"nvd_published_at": "2023-11-10T19:15:16Z",
"severity": "HIGH"
},
"details": "### Impact\nOn front-end forms with an asset upload field, PHP files crafted to look like images may be uploaded regardless of mime validation rules. This only affects forms using the \"Forms\" feature and not just _any_ arbitrary form. This does not affect the control panel.\n\n### Patches\nIt has been patched in 3.4.13 and 4.33.0.\n",
"id": "GHSA-72hg-5wr5-rmfc",
"modified": "2023-11-12T15:57:58Z",
"published": "2023-11-12T15:57:58Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/statamic/cms/security/advisories/GHSA-72hg-5wr5-rmfc"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-47129"
},
{
"type": "WEB",
"url": "https://github.com/statamic/cms/commit/098ef8024d97286ca501273c18ae75b646262d75"
},
{
"type": "WEB",
"url": "https://github.com/statamic/cms/commit/f6c688154f6bdbd0b67039f8f11dcd98ba061e77"
},
{
"type": "PACKAGE",
"url": "https://github.com/statamic/cms"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Statamic CMS remote code execution via front-end form uploads"
}
GHSA-72RV-WMP8-FPJH
Vulnerability from github – Published: 2024-11-04 15:31 – Updated: 2026-04-01 18:32Unrestricted Upload of File with Dangerous Type vulnerability in mahlamusa Multi Purpose Mail Form allows Upload a Web Shell to a Web Server.This issue affects Multi Purpose Mail Form: from n/a through 1.0.2.
{
"affected": [],
"aliases": [
"CVE-2024-50526"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-04T14:15:15Z",
"severity": "CRITICAL"
},
"details": "Unrestricted Upload of File with Dangerous Type vulnerability in mahlamusa Multi Purpose Mail Form allows Upload a Web Shell to a Web Server.This issue affects Multi Purpose Mail Form: from n/a through 1.0.2.",
"id": "GHSA-72rv-wmp8-fpjh",
"modified": "2026-04-01T18:32:17Z",
"published": "2024-11-04T15:31:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50526"
},
{
"type": "WEB",
"url": "https://github.com/JoshuaProvoste/0-click-RCE-Exploit-for-CVE-2024-50526"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/multi-purpose-mail-form/vulnerability/wordpress-multi-purpose-mail-form-plugin-1-0-2-arbitrary-file-upload-vulnerability-2?_s_id=cve"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/vulnerability/multi-purpose-mail-form/wordpress-multi-purpose-mail-form-plugin-1-0-2-arbitrary-file-upload-vulnerability-2?_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-72VR-CHH5-3RGJ
Vulnerability from github – Published: 2024-12-14 06:30 – Updated: 2024-12-14 06:30The Crafthemes Demo Import plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'process_uploaded_files' function in all versions up to, and including, 3.3. This makes it possible for authenticated attackers, with Administrator-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
{
"affected": [],
"aliases": [
"CVE-2024-9698"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-14T05:15:12Z",
"severity": "HIGH"
},
"details": "The Crafthemes Demo Import plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the \u0027process_uploaded_files\u0027 function in all versions up to, and including, 3.3. This makes it possible for authenticated attackers, with Administrator-level access and above, to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible.",
"id": "GHSA-72vr-chh5-3rgj",
"modified": "2024-12-14T06:30:48Z",
"published": "2024-12-14T06:30:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-9698"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/crafthemes-demo-import/trunk/inc/Helpers.php#L421"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e44dd0e8-e6e7-4a2d-b9ca-abd1de273092?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-72VV-7JQJ-QV3Q
Vulnerability from github – Published: 2024-06-18 15:30 – Updated: 2024-11-18 16:26A vulnerability classified as critical has been found in itsourcecode Monbela Tourist Inn Online Reservation System up to 1.0. Affected is an unknown function of the file controller.php. The manipulation of the argument image leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-268866 is the identifier assigned to this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2024-6114"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-18T13:15:52Z",
"severity": "MODERATE"
},
"details": "A vulnerability classified as critical has been found in itsourcecode Monbela Tourist Inn Online Reservation System up to 1.0. Affected is an unknown function of the file controller.php. The manipulation of the argument image leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-268866 is the identifier assigned to this vulnerability.",
"id": "GHSA-72vv-7jqj-qv3q",
"modified": "2024-11-18T16:26:45Z",
"published": "2024-06-18T15:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-6114"
},
{
"type": "WEB",
"url": "https://github.com/wangyuan-ui/CVE/issues/4"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.268866"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.268866"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.358995"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/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"
}
]
}
GHSA-736Q-94F7-6GFQ
Vulnerability from github – Published: 2022-04-30 18:17 – Updated: 2022-04-30 18:17The default configuration of Norton AntiVirus for Microsoft Exchange 2000 2.x allows remote attackers to identify the recipient's INBOX file path by sending an email with an attachment containing malicious content, which includes the path in the rejection notice.
{
"affected": [],
"aliases": [
"CVE-2001-1099"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2001-09-07T04:00:00Z",
"severity": "MODERATE"
},
"details": "The default configuration of Norton AntiVirus for Microsoft Exchange 2000 2.x allows remote attackers to identify the recipient\u0027s INBOX file path by sending an email with an attachment containing malicious content, which includes the path in the rejection notice.",
"id": "GHSA-736q-94f7-6gfq",
"modified": "2022-04-30T18:17:20Z",
"published": "2022-04-30T18:17:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2001-1099"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/7093"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/212724"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/213762"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/3305"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-737M-CR75-9HW3
Vulnerability from github – Published: 2022-05-24 19:17 – Updated: 2022-12-09 18:30Versions up to, and including, 1.0.6, of the Access Demo Importer WordPress plugin are vulnerable to arbitrary file uploads via the plugin_offline_installer AJAX action due to a missing capability check in the plugin_offline_installer_callback function found in the ~/inc/demo-functions.php.
{
"affected": [],
"aliases": [
"CVE-2021-39317"
],
"database_specific": {
"cwe_ids": [
"CWE-285",
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-10-11T16:15:00Z",
"severity": "HIGH"
},
"details": "Versions up to, and including, 1.0.6, of the Access Demo Importer WordPress plugin are vulnerable to arbitrary file uploads via the plugin_offline_installer AJAX action due to a missing capability check in the plugin_offline_installer_callback function found in the ~/inc/demo-functions.php.",
"id": "GHSA-737m-cr75-9hw3",
"modified": "2022-12-09T18:30:33Z",
"published": "2022-05-24T19:17:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39317"
},
{
"type": "WEB",
"url": "https://patchstack.com/articles/authenticated-vulnerability-in-unpatched-wordpress-themes"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/2592642/access-demo-importer/trunk/inc/demo-functions.php"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/2602132/access-demo-importer/trunk/inc/demo-functions.php"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/blog/2021/10/high-severity-vulnerability-patched-in-access-demo-importer-plugin"
}
],
"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-73C4-6C6C-C5P3
Vulnerability from github – Published: 2025-03-17 00:30 – Updated: 2025-03-17 00:30A vulnerability was found in IROAD Dash Cam FX2 up to 20250308. It has been rated as critical. Affected by this issue is some unknown functionality of the file /action/upload_file. The manipulation leads to unrestricted upload. Access to the local network is required for this attack to succeed. The exploit has been disclosed to the public and may be used.
{
"affected": [],
"aliases": [
"CVE-2025-2350"
],
"database_specific": {
"cwe_ids": [
"CWE-284",
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-16T22:15:13Z",
"severity": "MODERATE"
},
"details": "A vulnerability was found in IROAD Dash Cam FX2 up to 20250308. It has been rated as critical. Affected by this issue is some unknown functionality of the file /action/upload_file. The manipulation leads to unrestricted upload. Access to the local network is required for this attack to succeed. The exploit has been disclosed to the public and may be used.",
"id": "GHSA-73c4-6c6c-c5p3",
"modified": "2025-03-17T00:30:21Z",
"published": "2025-03-17T00:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2350"
},
{
"type": "WEB",
"url": "https://github.com/geo-chen/IROAD?tab=readme-ov-file#finding-10-unauthenticated-uploads"
},
{
"type": "WEB",
"url": "https://github.com/geo-chen/IROAD?tab=readme-ov-file#finding-11-unrestricted-webshell"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.299816"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.299816"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/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"
}
]
}
GHSA-73GV-7G7W-8QG4
Vulnerability from github – Published: 2026-06-17 18:35 – Updated: 2026-06-17 18:35Subscriber Arbitrary File Upload in Kids Gift Shop <= 0.5.4 versions.
{
"affected": [],
"aliases": [
"CVE-2026-40748"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-17T13:20:36Z",
"severity": "CRITICAL"
},
"details": "Subscriber Arbitrary File Upload in Kids Gift Shop \u003c= 0.5.4 versions.",
"id": "GHSA-73gv-7g7w-8qg4",
"modified": "2026-06-17T18:35:50Z",
"published": "2026-06-17T18:35:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40748"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/theme/kids-gift-shop/vulnerability/wordpress-kids-gift-shop-theme-0-5-4-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-73HM-7VV6-HPXR
Vulnerability from github – Published: 2025-08-09 21:30 – Updated: 2025-08-09 21:30A vulnerability was found in Qiyuesuo Eelectronic Signature Platform up to 4.34 and classified as critical. Affected by this issue is the function execute of the file /api/code/upload of the component Scheduled Task Handler. The manipulation of the argument File leads to unrestricted upload. The attack may be launched 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-2025-8775"
],
"database_specific": {
"cwe_ids": [
"CWE-284",
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-09T21:15:25Z",
"severity": "MODERATE"
},
"details": "A vulnerability was found in Qiyuesuo Eelectronic Signature Platform up to 4.34 and classified as critical. Affected by this issue is the function execute of the file /api/code/upload of the component Scheduled Task Handler. The manipulation of the argument File leads to unrestricted upload. The attack may be launched 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-73hm-7vv6-hpxr",
"modified": "2025-08-09T21:30:23Z",
"published": "2025-08-09T21:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-8775"
},
{
"type": "WEB",
"url": "https://github.com/nn0nkey/nn0nkey/blob/main/QYS/QYS_task.md"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.319298"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.319298"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.625551"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.625553"
}
],
"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.