CWE-94
Allowed-with-ReviewImproper Control of Generation of Code ('Code Injection')
Abstraction: Base · Status: Draft
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
8269 vulnerabilities reference this CWE, most recent first.
GHSA-GVV4-F8JM-4W34
Vulnerability from github – Published: 2022-05-17 02:00 – Updated: 2022-05-17 02:00The Blueberry FlashBack ActiveX control in BB FlashBack Recorder.dll in Blueberry BB FlashBack, as used in IBM Rational Rhapsody before 7.6.1 and other products, does not properly implement the InsertMarker method, which allows remote attackers to execute arbitrary code via unspecified vectors.
{
"affected": [],
"aliases": [
"CVE-2011-1391"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2011-12-23T22:55:00Z",
"severity": "HIGH"
},
"details": "The Blueberry FlashBack ActiveX control in BB FlashBack Recorder.dll in Blueberry BB FlashBack, as used in IBM Rational Rhapsody before 7.6.1 and other products, does not properly implement the InsertMarker method, which allows remote attackers to execute arbitrary code via unspecified vectors.",
"id": "GHSA-gvv4-f8jm-4w34",
"modified": "2022-05-17T02:00:43Z",
"published": "2022-05-17T02:00:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-1391"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/71803"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/47286"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/47310"
},
{
"type": "WEB",
"url": "http://www-01.ibm.com/support/docview.wss?uid=swg21576352"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-GVX9-XQP4-V684
Vulnerability from github – Published: 2022-05-24 16:53 – Updated: 2024-07-03 18:32A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1133.
{
"affected": [],
"aliases": [
"CVE-2019-1194"
],
"database_specific": {
"cwe_ids": [
"CWE-787",
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-08-14T21:15:00Z",
"severity": "HIGH"
},
"details": "A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka \u0027Scripting Engine Memory Corruption Vulnerability\u0027. This CVE ID is unique from CVE-2019-1133.",
"id": "GHSA-gvx9-xqp4-v684",
"modified": "2024-07-03T18:32:05Z",
"published": "2022-05-24T16:53:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-1194"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1194"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-GW78-W7CP-X422
Vulnerability from github – Published: 2022-05-01 18:28 – Updated: 2022-05-01 18:28Direct static code injection vulnerability in includes/admin/sub/conf_appearence.php in Shop-Script FREE 2.0 and earlier allows remote attackers to inject arbitrary PHP code into cfg/appearence.inc.php via a save_appearence action in admin.php, as demonstrated with the (1) productscount, (2) colscount, and (3) darkcolor parameters.
{
"affected": [],
"aliases": [
"CVE-2007-4933"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2007-09-18T18:17:00Z",
"severity": "HIGH"
},
"details": "Direct static code injection vulnerability in includes/admin/sub/conf_appearence.php in Shop-Script FREE 2.0 and earlier allows remote attackers to inject arbitrary PHP code into cfg/appearence.inc.php via a save_appearence action in admin.php, as demonstrated with the (1) productscount, (2) colscount, and (3) darkcolor parameters.",
"id": "GHSA-gw78-w7cp-x422",
"modified": "2022-05-01T18:28:14Z",
"published": "2022-05-01T18:28:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2007-4933"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/4419"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/26840"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/25695"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-GW92-CF78-427Q
Vulnerability from github – Published: 2022-01-12 00:01 – Updated: 2024-11-14 21:31Microsoft Exchange Server Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-21855, CVE-2022-21969.
{
"affected": [],
"aliases": [
"CVE-2022-21846"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-11T21:15:00Z",
"severity": "CRITICAL"
},
"details": "Microsoft Exchange Server Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-21855, CVE-2022-21969.",
"id": "GHSA-gw92-cf78-427q",
"modified": "2024-11-14T21:31:43Z",
"published": "2022-01-12T00:01:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21846"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21846"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21846"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-GWG9-RGVJ-4H5J
Vulnerability from github – Published: 2019-03-25 18:03 – Updated: 2023-09-12 20:50Verisons of morgan before 1.9.1 are vulnerable to code injection when user input is allowed into the filter or combined with a prototype pollution attack.
Recommendation
Update to version 1.9.1 or later.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "morgan"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.9.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2019-5413"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T21:38:10Z",
"nvd_published_at": null,
"severity": "CRITICAL"
},
"details": "Verisons of `morgan` before 1.9.1 are vulnerable to code injection when user input is allowed into the filter or combined with a prototype pollution attack.\n\n\n## Recommendation\n\nUpdate to version 1.9.1 or later.",
"id": "GHSA-gwg9-rgvj-4h5j",
"modified": "2023-09-12T20:50:05Z",
"published": "2019-03-25T18:03:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5413"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/390881"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-gwg9-rgvj-4h5j"
},
{
"type": "WEB",
"url": "https://github.com/nodejs/security-wg/blob/master/vuln/npm/473.json"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r8ba4c628fba7181af58817d452119481adce4ba92e889c643e4c7dd3@%3Ccommits.netbeans.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rb5ac16fad337d1f3bb7079549f97d8166d0ef3082629417c39f12d63@%3Cnotifications.netbeans.apache.org%3E"
},
{
"type": "WEB",
"url": "https://www.npmjs.com/advisories/736"
}
],
"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": "Code Injection in morgan"
}
GHSA-GWJ6-XPFG-PXWR
Vulnerability from github – Published: 2025-09-08 20:59 – Updated: 2025-09-10 21:05Impact
The blog application in XWiki allowed remote code execution for any user who has edit right on any page. Normally, these are all logged-in users as they can edit their own user profile. To exploit, it is sufficient to add an object of type Blog.BlogPostClass to any page and to add some script macro with the exploit code to the "Content" field of that object.
Patches
The vulnerability has been patched in the blog application version 9.14 by executing the content of blog posts with the rights of the appropriate author.
Workarounds
We're not aware of any workarounds.
Resources
- https://jira.xwiki.org/browse/BLOG-191
- https://github.com/xwiki-contrib/application-blog/commit/b98ab6f17da3029576f42d12b4442cd555c7e0b4
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.contrib.blog:application-blog-ui"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "9.14"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-58365"
],
"database_specific": {
"cwe_ids": [
"CWE-250",
"CWE-94",
"CWE-95"
],
"github_reviewed": true,
"github_reviewed_at": "2025-09-08T20:59:47Z",
"nvd_published_at": "2025-09-08T22:15:34Z",
"severity": "HIGH"
},
"details": "### Impact\nThe blog application in XWiki allowed remote code execution for any user who has edit right on any page. Normally, these are all logged-in users as they can edit their own user profile. To exploit, it is sufficient to add an object of type `Blog.BlogPostClass` to any page and to add some script macro with the exploit code to the \"Content\" field of that object.\n\n### Patches\nThe vulnerability has been patched in the blog application version 9.14 by executing the content of blog posts with the rights of the appropriate author.\n\n### Workarounds\nWe\u0027re not aware of any workarounds.\n\n### Resources\n* https://jira.xwiki.org/browse/BLOG-191\n* https://github.com/xwiki-contrib/application-blog/commit/b98ab6f17da3029576f42d12b4442cd555c7e0b4",
"id": "GHSA-gwj6-xpfg-pxwr",
"modified": "2025-09-10T21:05:21Z",
"published": "2025-09-08T20:59:47Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/xwiki-contrib/application-blog/security/advisories/GHSA-gwj6-xpfg-pxwr"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-58365"
},
{
"type": "WEB",
"url": "https://github.com/xwiki-contrib/application-blog/commit/b98ab6f17da3029576f42d12b4442cd555c7e0b4"
},
{
"type": "PACKAGE",
"url": "https://github.com/xwiki-contrib/application-blog"
},
{
"type": "WEB",
"url": "https://jira.xwiki.org/browse/BLOG-191"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "XWiki Blog Application: Privilege Escalation (PR) from account through blog content"
}
GHSA-GWQ4-7R9J-Q85V
Vulnerability from github – Published: 2022-08-10 00:00 – Updated: 2022-08-10 00:00Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-34702, CVE-2022-34714, CVE-2022-35745, CVE-2022-35752, CVE-2022-35753, CVE-2022-35767, CVE-2022-35794.
{
"affected": [],
"aliases": [
"CVE-2022-35766"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-09T20:15:00Z",
"severity": "HIGH"
},
"details": "Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-34702, CVE-2022-34714, CVE-2022-35745, CVE-2022-35752, CVE-2022-35753, CVE-2022-35767, CVE-2022-35794.",
"id": "GHSA-gwq4-7r9j-q85v",
"modified": "2022-08-10T00:00:18Z",
"published": "2022-08-10T00:00:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-35766"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-35766"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-35766"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-GWQQ-6VQ7-5J86
Vulnerability from github – Published: 2023-08-05 03:30 – Updated: 2024-09-27 17:45An issue in Harrison Chase langchain allows an attacker to execute arbitrary code via the PALChain,from_math_prompt(llm).run in the python exec method.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "langchain"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0.236"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-36095"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": true,
"github_reviewed_at": "2023-08-09T14:11:52Z",
"nvd_published_at": "2023-08-05T03:15:13Z",
"severity": "CRITICAL"
},
"details": "An issue in Harrison Chase langchain allows an attacker to execute arbitrary code via the PALChain,from_math_prompt(llm).run in the python exec method.",
"id": "GHSA-gwqq-6vq7-5j86",
"modified": "2024-09-27T17:45:11Z",
"published": "2023-08-05T03:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-36095"
},
{
"type": "WEB",
"url": "https://github.com/langchain-ai/langchain/issues/5872"
},
{
"type": "WEB",
"url": "https://github.com/langchain-ai/langchain/pull/6003"
},
{
"type": "WEB",
"url": "https://github.com/langchain-ai/langchain/pull/7870"
},
{
"type": "WEB",
"url": "https://github.com/langchain-ai/langchain/commit/8ba9835b925473655914f63822775679e03ea137"
},
{
"type": "WEB",
"url": "https://github.com/langchain-ai/langchain/commit/e294ba475a355feb95003ed8f1a2b99942509a9e"
},
{
"type": "WEB",
"url": "https://github.com/hwchase17/langchain"
},
{
"type": "PACKAGE",
"url": "https://github.com/langchain-ai/langchain"
},
{
"type": "WEB",
"url": "https://github.com/langchain-ai/langchain/commits/v0.0.236?after=4d8b48bdb3f17c764c5c2e3c7140071603869e74+34\u0026branch=v0.0.236\u0026qualified_name=refs%2Ftags%2Fv0.0.236"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/langchain/PYSEC-2023-138.yaml"
},
{
"type": "WEB",
"url": "http://langchain.com"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "langchain Code Injection vulnerability"
}
GHSA-GWR9-QFPW-3H2X
Vulnerability from github – Published: 2022-05-17 04:19 – Updated: 2022-05-17 04:19The Server Side Includes (SSI) implementation in the File Upload BBS component in ULTRAPOP.JP i-HTTPD allows remote attackers to execute arbitrary commands by uploading files containing commands in SSI directives.
{
"affected": [],
"aliases": [
"CVE-2014-7260"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-12-12T00:59:00Z",
"severity": "HIGH"
},
"details": "The Server Side Includes (SSI) implementation in the File Upload BBS component in ULTRAPOP.JP i-HTTPD allows remote attackers to execute arbitrary commands by uploading files containing commands in SSI directives.",
"id": "GHSA-gwr9-qfpw-3h2x",
"modified": "2022-05-17T04:19:55Z",
"published": "2022-05-17T04:19:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-7260"
},
{
"type": "WEB",
"url": "http://jvn.jp/en/jp/JVN16406395/360573/index.html"
},
{
"type": "WEB",
"url": "http://jvn.jp/en/jp/JVN16406395/index.html"
},
{
"type": "WEB",
"url": "http://jvndb.jvn.jp/jvndb/JVNDB-2014-000143"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-GWRJ-88FP-5M36
Vulnerability from github – Published: 2021-07-02 18:36 – Updated: 2023-01-24 15:09Narou (aka Narou.rb) before 3.8.0 allows Ruby Code Injection via the title name or author name of a novel.
{
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "narou"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.8.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-35514"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": true,
"github_reviewed_at": "2021-06-30T17:42:19Z",
"nvd_published_at": "2021-06-28T12:15:00Z",
"severity": "HIGH"
},
"details": "Narou (aka Narou.rb) before 3.8.0 allows Ruby Code Injection via the title name or author name of a novel.",
"id": "GHSA-gwrj-88fp-5m36",
"modified": "2023-01-24T15:09:14Z",
"published": "2021-07-02T18:36:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-35514"
},
{
"type": "WEB",
"url": "https://github.com/whiteleaf7/narou/commit/d07720e855293182563b749431dfbf6c2d1cdb42"
},
{
"type": "PACKAGE",
"url": "https://github.com/whiteleaf7/narou"
},
{
"type": "WEB",
"url": "https://github.com/whiteleaf7/narou/blob/develop/ChangeLog.md#380-20210627"
},
{
"type": "WEB",
"url": "https://vuln.ryotak.me/advisories/51"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "Code injection in Narou"
}
Mitigation
Strategy: Refactoring
Refactor your program so that you do not have to dynamically generate code.
Mitigation
- Run your code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which code can be executed by your product.
- Examples include the Unix chroot jail and AppArmor. In general, managed code may provide some protection.
- This may not be a feasible solution, and it only limits the impact to the operating system; the rest of your application may still be subject to compromise.
- Be careful to avoid CWE-243 and other weaknesses related to jails.
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.
- To reduce the likelihood of code injection, use stringent allowlists that limit which constructs are allowed. If you are dynamically constructing code that invokes a function, then verifying that the input is alphanumeric might be insufficient. An attacker might still be able to reference a dangerous function that you did not intend to allow, such as system(), exec(), or exit().
Mitigation
Use dynamic tools and techniques that interact with the product using large test suites with many diverse inputs, such as fuzz testing (fuzzing), robustness testing, and fault injection. The product's operation may slow down, but it should not become unstable, crash, or generate incorrect results.
Mitigation MIT-32
Strategy: Compilation or Build Hardening
Run the code in an environment that performs automatic taint propagation and prevents any command execution that uses tainted variables, such as Perl's "-T" switch. This will force the program to perform validation steps that remove the taint, although you must be careful to correctly validate your inputs so that you do not accidentally mark dangerous inputs as untainted (see CWE-183 and CWE-184).
Mitigation MIT-32
Strategy: Environment Hardening
Run the code in an environment that performs automatic taint propagation and prevents any command execution that uses tainted variables, such as Perl's "-T" switch. This will force the program to perform validation steps that remove the taint, although you must be careful to correctly validate your inputs so that you do not accidentally mark dangerous inputs as untainted (see CWE-183 and CWE-184).
Mitigation
For Python programs, it is frequently encouraged to use the ast.literal_eval() function instead of eval, since it is intentionally designed to avoid executing code. However, an adversary could still cause excessive memory or stack consumption via deeply nested structures [REF-1372], so the python documentation discourages use of ast.literal_eval() on untrusted data [REF-1373].
CAPEC-242: Code Injection
An adversary exploits a weakness in input validation on the target to inject new code into that which is currently executing. This differs from code inclusion in that code inclusion involves the addition or replacement of a reference to a code file, which is subsequently loaded by the target and used as part of the code of some application.
CAPEC-35: Leverage Executable Code in Non-Executable Files
An attack of this type exploits a system's trust in configuration and resource files. When the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high.
CAPEC-77: Manipulating User-Controlled Variables
This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An adversary can override variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the adversary can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.