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.
8337 vulnerabilities reference this CWE, most recent first.
GHSA-9QVW-FHJ2-XQMV
Vulnerability from github – Published: 2023-03-13 09:30 – Updated: 2023-03-17 16:59Code Injection in GitHub repository alextselegidis/easyappointments prior to 1.5.0 due to unescaped output.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "alextselegidis/easyappointments"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-1367"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": true,
"github_reviewed_at": "2023-03-13T20:43:54Z",
"nvd_published_at": "2023-03-13T09:15:00Z",
"severity": "HIGH"
},
"details": "Code Injection in GitHub repository alextselegidis/easyappointments prior to 1.5.0 due to unescaped output.",
"id": "GHSA-9qvw-fhj2-xqmv",
"modified": "2023-03-17T16:59:07Z",
"published": "2023-03-13T09:30:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1367"
},
{
"type": "WEB",
"url": "https://github.com/alextselegidis/easyappointments/commit/453c6e130229718680c91bef450db643a0f263e4"
},
{
"type": "PACKAGE",
"url": "https://github.com/alextselegidis/easyappointments"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/16bc74e2-1825-451f-bff7-bfdc1ea75cc2"
}
],
"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"
}
],
"summary": "Code Injection in alextselegidis/easyappointments"
}
GHSA-9R2H-RC6J-37JJ
Vulnerability from github – Published: 2021-12-04 00:00 – Updated: 2022-07-13 00:01A remote code execution (RCE) vulnerability in course_intro_pdf_import.php of Chamilo LMS v1.11.x allows authenticated attackers to execute arbitrary code via a crafted .htaccess file.
{
"affected": [],
"aliases": [
"CVE-2021-35413"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-03T22:15:00Z",
"severity": "HIGH"
},
"details": "A remote code execution (RCE) vulnerability in course_intro_pdf_import.php of Chamilo LMS v1.11.x allows authenticated attackers to execute arbitrary code via a crafted .htaccess file.",
"id": "GHSA-9r2h-rc6j-37jj",
"modified": "2022-07-13T00:01:28Z",
"published": "2021-12-04T00:00:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-35413"
},
{
"type": "WEB",
"url": "https://github.com/chamilo/chamilo-lms/commit/2e5c004b57d551678a1815500ef91524ba7bb757"
},
{
"type": "WEB",
"url": "https://github.com/chamilo/chamilo-lms/commit/905a21037ebc9bc5369f0fb380177cb56f496f5c"
},
{
"type": "WEB",
"url": "https://github.com/andrejspuler/writeups/tree/main/chamilo-lms#authenticated-remote-code-execution-in-import-file"
},
{
"type": "WEB",
"url": "https://support.chamilo.org/projects/1/wiki/Security_issues#Issue-66-2021-05-21-High-impact-very-low-risk-Authenticated-RCE-in-accessory-script"
}
],
"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-9R4X-679C-V27F
Vulnerability from github – Published: 2022-05-01 18:23 – Updated: 2022-05-01 18:23PHP remote file inclusion vulnerability in includes/class/class_tpl.php in Firesoft allows remote attackers to execute arbitrary PHP code via a URL in the cache_file parameter.
{
"affected": [],
"aliases": [
"CVE-2007-4458"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2007-08-21T21:17:00Z",
"severity": "HIGH"
},
"details": "PHP remote file inclusion vulnerability in includes/class/class_tpl.php in Firesoft allows remote attackers to execute arbitrary PHP code via a URL in the cache_file parameter.",
"id": "GHSA-9r4x-679c-v27f",
"modified": "2022-05-01T18:23:55Z",
"published": "2022-05-01T18:23:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2007-4458"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/36143"
},
{
"type": "WEB",
"url": "http://osvdb.org/37699"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/477243/100/0/threaded"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/25366"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-9R5C-96R6-629R
Vulnerability from github – Published: 2022-05-14 02:53 – Updated: 2022-05-14 02:53The network-diagnostics administration interface in the Cisco RV router firmware on RV220W devices, before 1.0.5.9 on RV120W devices, and before 1.0.4.14 on RV180 and RV180W devices allows remote authenticated users to execute arbitrary commands via a crafted HTTP request, aka Bug ID CSCuh87126.
{
"affected": [],
"aliases": [
"CVE-2014-2177"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-11-07T11:55:00Z",
"severity": "HIGH"
},
"details": "The network-diagnostics administration interface in the Cisco RV router firmware on RV220W devices, before 1.0.5.9 on RV120W devices, and before 1.0.4.14 on RV180 and RV180W devices allows remote authenticated users to execute arbitrary commands via a crafted HTTP request, aka Bug ID CSCuh87126.",
"id": "GHSA-9r5c-96r6-629r",
"modified": "2022-05-14T02:53:29Z",
"published": "2022-05-14T02:53:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-2177"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/98497"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/128992/Cisco-RV-Overwrite-CSRF-Command-Execution.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2014/Nov/6"
},
{
"type": "WEB",
"url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20141105-rv"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/533917/100/0/threaded"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1031171"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-9R6G-266R-89X4
Vulnerability from github – Published: 2026-07-04 03:31 – Updated: 2026-07-04 03:31In nltk/nltk versions 3.9.3 and earlier, five Stanford interface classes (StanfordPOSTagger, StanfordNERTagger, StanfordParser, StanfordDependencyParser, and StanfordNeuralDependencyParser) are vulnerable to untrusted JAR code execution. These classes accept user-controllable JAR paths and execute them via the java() function, which invokes subprocess.Popen() without integrity verification. This vulnerability is identical to CVE-2026-0848, which was fixed for StanfordSegmenter by adding SHA256 verification. However, the fix was not applied to these additional classes, leaving them susceptible to arbitrary code execution when loading untrusted JAR files.
{
"affected": [],
"aliases": [
"CVE-2026-12252"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-04T02:16:23Z",
"severity": "HIGH"
},
"details": "In nltk/nltk versions 3.9.3 and earlier, five Stanford interface classes (StanfordPOSTagger, StanfordNERTagger, StanfordParser, StanfordDependencyParser, and StanfordNeuralDependencyParser) are vulnerable to untrusted JAR code execution. These classes accept user-controllable JAR paths and execute them via the `java()` function, which invokes `subprocess.Popen()` without integrity verification. This vulnerability is identical to CVE-2026-0848, which was fixed for StanfordSegmenter by adding SHA256 verification. However, the fix was not applied to these additional classes, leaving them susceptible to arbitrary code execution when loading untrusted JAR files.",
"id": "GHSA-9r6g-266r-89x4",
"modified": "2026-07-04T03:31:03Z",
"published": "2026-07-04T03:31:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12252"
},
{
"type": "WEB",
"url": "https://huntr.com/bounties/f5c93982-0cc9-4e2e-bb85-1b6ab29a2efb"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9R7Q-RGXM-F2HM
Vulnerability from github – Published: 2022-05-24 19:02 – Updated: 2022-05-24 19:02A vulnerability was found in Moodle where javaScript injection was possible in some Mustache templates via recursive rendering from contexts. Mustache helper tags that were included in template contexts were not being escaped before that context was injected into another Mustache helper, which could result in script injection in some templates. This affects versions 3.7 to 3.7.1, 3.6 to 3.6.5, 3.5 to 3.5.7 and earlier unsupported versions.
{
"affected": [],
"aliases": [
"CVE-2019-14827"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-05-17T16:15:00Z",
"severity": "MODERATE"
},
"details": "A vulnerability was found in Moodle where javaScript injection was possible in some Mustache templates via recursive rendering from contexts. Mustache helper tags that were included in template contexts were not being escaped before that context was injected into another Mustache helper, which could result in script injection in some templates. This affects versions 3.7 to 3.7.1, 3.6 to 3.6.5, 3.5 to 3.5.7 and earlier unsupported versions.",
"id": "GHSA-9r7q-rgxm-f2hm",
"modified": "2022-05-24T19:02:38Z",
"published": "2022-05-24T19:02:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-14827"
},
{
"type": "WEB",
"url": "https://git.moodle.org/gw?p=moodle.git\u0026a=search\u0026h=HEAD\u0026st=commit\u0026s=MDL-62284"
},
{
"type": "WEB",
"url": "https://moodle.org/mod/forum/discuss.php?d=391030"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-9R84-2JV4-QCMH
Vulnerability from github – Published: 2022-05-01 18:14 – Updated: 2022-05-01 18:14** DISPUTED ** Microsoft Internet Explorer 6.0 and 7.0 allows remote attackers to fill Zones with arbitrary domains using certain metacharacters such as wildcards via JavaScript, which results in a denial of service (website suppression and resource consumption), aka "Internet Explorer Zone Domain Specification Dos and Page Suppressing". NOTE: this issue has been disputed by a third party, who states that the zone settings cannot be manipulated.
{
"affected": [],
"aliases": [
"CVE-2007-3550"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2007-07-03T21:30:00Z",
"severity": "HIGH"
},
"details": "** DISPUTED ** Microsoft Internet Explorer 6.0 and 7.0 allows remote attackers to fill Zones with arbitrary domains using certain metacharacters such as wildcards via JavaScript, which results in a denial of service (website suppression and resource consumption), aka \"Internet Explorer Zone Domain Specification Dos and Page Suppressing\". NOTE: this issue has been disputed by a third party, who states that the zone settings cannot be manipulated.",
"id": "GHSA-9r84-2jv4-qcmh",
"modified": "2022-05-01T18:14:51Z",
"published": "2022-05-01T18:14:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2007-3550"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/35455"
},
{
"type": "WEB",
"url": "http://lists.grok.org.uk/pipermail/full-disclosure/2007-July/064326.html"
},
{
"type": "WEB",
"url": "http://osvdb.org/45814"
},
{
"type": "WEB",
"url": "http://securityreason.com/securityalert/2855"
},
{
"type": "WEB",
"url": "http://www.secniche.org/advisory/Internet_Dos_Adv.pdf"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/472651/100/0/threaded"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/473662"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/485536/100/0/threaded"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/24744"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-9RC9-J8HF-3W5M
Vulnerability from github – Published: 2025-08-13 21:30 – Updated: 2025-08-13 21:30WeBid 1.0.2 contains a remote code injection vulnerability in the converter.php script, where unsanitized input in the to parameter of a POST request is written directly into includes/currencies.php. This allows unauthenticated attackers to inject arbitrary PHP code, resulting in persistent remote code execution when the modified script is accessed or included by the application.
{
"affected": [],
"aliases": [
"CVE-2011-10011"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-13T21:15:28Z",
"severity": "CRITICAL"
},
"details": "WeBid 1.0.2 contains a remote code injection vulnerability in the converter.php script, where unsanitized input in the to parameter of a POST request is written directly into includes/currencies.php. This allows unauthenticated attackers to inject arbitrary PHP code, resulting in persistent remote code execution when the modified script is accessed or included by the application.",
"id": "GHSA-9rc9-j8hf-3w5m",
"modified": "2025-08-13T21:30:29Z",
"published": "2025-08-13T21:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-10011"
},
{
"type": "WEB",
"url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/webid_converter.rb"
},
{
"type": "WEB",
"url": "https://sourceforge.net/projects/simpleauction"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20121024110058/http://www.webidsupport.com/forums/showthread.php?3892"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/17487"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/18934"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/webid-remote-php-code-injection"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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-9RCV-5P26-MP8G
Vulnerability from github – Published: 2023-11-08 18:30 – Updated: 2023-11-08 18:30An arbitrary code execution which results in privilege escalation was discovered in Helix Core versions prior to 2023.2. Reported by Jason Geffner.
{
"affected": [],
"aliases": [
"CVE-2023-45849"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-08T16:15:10Z",
"severity": "HIGH"
},
"details": "An arbitrary code execution which results in privilege escalation was discovered in Helix Core versions prior to 2023.2. Reported by Jason Geffner.\n",
"id": "GHSA-9rcv-5p26-mp8g",
"modified": "2023-11-08T18:30:31Z",
"published": "2023-11-08T18:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45849"
},
{
"type": "WEB",
"url": "https://perforce.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9RHV-WH54-FXJM
Vulnerability from github – Published: 2023-12-29 09:30 – Updated: 2026-04-28 21:33Improper Control of Generation of Code ('Code Injection') vulnerability in TienCOP WP EXtra.This issue affects WP EXtra: from n/a through 6.2.
{
"affected": [],
"aliases": [
"CVE-2023-46623"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-12-29T09:15:09Z",
"severity": "CRITICAL"
},
"details": "Improper Control of Generation of Code (\u0027Code Injection\u0027) vulnerability in TienCOP WP EXtra.This issue affects WP EXtra: from n/a through 6.2.",
"id": "GHSA-9rhv-wh54-fxjm",
"modified": "2026-04-28T21:33:38Z",
"published": "2023-12-29T09:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-46623"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/vulnerability/wp-extra/wordpress-wp-extra-plugin-6-2-remote-code-execution-rce-via-htaccess-modification-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"
}
]
}
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.