CWE-77
Allowed-with-ReviewImproper Neutralization of Special Elements used in a Command ('Command Injection')
Abstraction: Class · Status: Draft
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
5386 vulnerabilities reference this CWE, most recent first.
GHSA-MP66-X979-42JC
Vulnerability from github – Published: 2022-05-24 19:13 – Updated: 2022-05-24 19:13A remote arbitrary command execution vulnerability was discovered in Aruba SD-WAN Software and Gateways; Aruba Operating System Software version(s): Prior to 8.6.0.4-2.2.0.4; Prior to 8.7.1.4, 8.6.0.9, 8.5.0.13, 8.3.0.16, 6.5.4.20, 6.4.4.25. Aruba has released patches for Aruba SD-WAN Software and Gateways and ArubaOS that address this security vulnerability.
{
"affected": [],
"aliases": [
"CVE-2021-37722"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-07T13:15:00Z",
"severity": "HIGH"
},
"details": "A remote arbitrary command execution vulnerability was discovered in Aruba SD-WAN Software and Gateways; Aruba Operating System Software version(s): Prior to 8.6.0.4-2.2.0.4; Prior to 8.7.1.4, 8.6.0.9, 8.5.0.13, 8.3.0.16, 6.5.4.20, 6.4.4.25. Aruba has released patches for Aruba SD-WAN Software and Gateways and ArubaOS that address this security vulnerability.",
"id": "GHSA-mp66-x979-42jc",
"modified": "2022-05-24T19:13:13Z",
"published": "2022-05-24T19:13:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37722"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-280624.pdf"
},
{
"type": "WEB",
"url": "https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-016.txt"
}
],
"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-MP7M-VRR7-G6GW
Vulnerability from github – Published: 2024-09-10 18:30 – Updated: 2024-09-10 18:30Microsoft SharePoint Server Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-38228"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-10T17:15:25Z",
"severity": "HIGH"
},
"details": "Microsoft SharePoint Server Remote Code Execution Vulnerability",
"id": "GHSA-mp7m-vrr7-g6gw",
"modified": "2024-09-10T18:30:45Z",
"published": "2024-09-10T18:30:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38228"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38228"
}
],
"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-MP92-8WVJ-JPHH
Vulnerability from github – Published: 2024-06-09 21:30 – Updated: 2024-06-12 18:30An issue was discovered on Mitel 6869i through 4.5.0.41 and 5.x through 5.0.0.1018 devices. A command injection vulnerability exists in the hostname parameter taken in by the provis.html endpoint. The provis.html endpoint performs no sanitization on the hostname parameter (sent by an authenticated user), which is subsequently written to disk. During boot, the hostname parameter is executed as part of a series of shell commands. Attackers can achieve remote code execution in the root context by placing shell metacharacters in the hostname parameter.
{
"affected": [],
"aliases": [
"CVE-2024-37569"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-09T20:15:09Z",
"severity": "HIGH"
},
"details": "An issue was discovered on Mitel 6869i through 4.5.0.41 and 5.x through 5.0.0.1018 devices. A command injection vulnerability exists in the hostname parameter taken in by the provis.html endpoint. The provis.html endpoint performs no sanitization on the hostname parameter (sent by an authenticated user), which is subsequently written to disk. During boot, the hostname parameter is executed as part of a series of shell commands. Attackers can achieve remote code execution in the root context by placing shell metacharacters in the hostname parameter.",
"id": "GHSA-mp92-8wvj-jphh",
"modified": "2024-06-12T18:30:38Z",
"published": "2024-06-09T21:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37569"
},
{
"type": "WEB",
"url": "https://github.com/kwburns/CVE/blob/main/Mitel/5.0.0.1018/code/exploit-provis.py"
},
{
"type": "WEB",
"url": "https://github.com/kwburns/CVE/tree/main/Mitel/5.0.0.1018#authenticated-remote-command-execution-provis"
},
{
"type": "WEB",
"url": "https://www.youtube.com/watch?v=I9TQqfP5qzM"
}
],
"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-MPCG-2WQ2-R3HQ
Vulnerability from github – Published: 2023-03-29 21:30 – Updated: 2023-04-06 15:30This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of SetWebFilterSetting requests to the web management portal. When parsing the WebFilterURLs element, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-16140.
{
"affected": [],
"aliases": [
"CVE-2022-43623"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-29T19:15:00Z",
"severity": "MODERATE"
},
"details": "This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of SetWebFilterSetting requests to the web management portal. When parsing the WebFilterURLs element, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-16140.",
"id": "GHSA-mpcg-2wq2-r3hq",
"modified": "2023-04-06T15:30:18Z",
"published": "2023-03-29T21:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-43623"
},
{
"type": "WEB",
"url": "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10310"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-1492"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MPF3-9C45-J4Q4
Vulnerability from github – Published: 2022-05-13 01:01 – Updated: 2022-05-13 01:01An exploitable command injection vulnerability exists in the web management interface used by the Foscam C1 Indoor HD Camera running application firmware 2.52.2.37. A specially crafted HTTP request can allow for a user to inject arbitrary shell characters resulting in command injection during the boot process. To trigger this vulnerability, an attacker needs to send an HTTP request and reboot the device.
{
"affected": [],
"aliases": [
"CVE-2017-2833"
],
"database_specific": {
"cwe_ids": [
"CWE-77",
"CWE-78"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-24T19:29:00Z",
"severity": "HIGH"
},
"details": "An exploitable command injection vulnerability exists in the web management interface used by the Foscam C1 Indoor HD Camera running application firmware 2.52.2.37. A specially crafted HTTP request can allow for a user to inject arbitrary shell characters resulting in command injection during the boot process. To trigger this vulnerability, an attacker needs to send an HTTP request and reboot the device.",
"id": "GHSA-mpf3-9c45-j4q4",
"modified": "2022-05-13T01:01:23Z",
"published": "2022-05-13T01:01:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-2833"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0334"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/99184"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MPPG-HVVJ-QPXJ
Vulnerability from github – Published: 2025-09-02 15:31 – Updated: 2025-09-02 21:30Wavlink WN535K3 20191010 was found to contain a command injection vulnerability in the set_sys_cmd function via the command parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.
{
"affected": [],
"aliases": [
"CVE-2025-50755"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-02T15:15:32Z",
"severity": "MODERATE"
},
"details": "Wavlink WN535K3 20191010 was found to contain a command injection vulnerability in the set_sys_cmd function via the command parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.",
"id": "GHSA-mppg-hvvj-qpxj",
"modified": "2025-09-02T21:30:57Z",
"published": "2025-09-02T15:31:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-50755"
},
{
"type": "WEB",
"url": "https://github.com/Summermu/VulnForIoT/tree/main/Wavlink_WN535K3/set_sys_cmd/readme.md"
}
],
"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:N",
"type": "CVSS_V3"
}
]
}
GHSA-MPWP-PF96-9G4R
Vulnerability from github – Published: 2022-08-03 00:00 – Updated: 2022-08-11 18:02A command injection vulnerability affects all versions of package npos-tesseract. The injection point is located in line 55 in lib/ocr.js.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "npos-tesseract"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.0.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-28453"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": true,
"github_reviewed_at": "2022-08-11T18:02:03Z",
"nvd_published_at": "2022-08-02T14:15:00Z",
"severity": "CRITICAL"
},
"details": "A command injection vulnerability affects all versions of package npos-tesseract. The injection point is located in line 55 in lib/ocr.js.",
"id": "GHSA-mpwp-pf96-9g4r",
"modified": "2022-08-11T18:02:03Z",
"published": "2022-08-03T00:00:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28453"
},
{
"type": "PACKAGE",
"url": "https://github.com/taoyuan/npos-tesseract"
},
{
"type": "WEB",
"url": "https://security.snyk.io/vuln/SNYK-JS-NPOSTESSERACT-1051031"
}
],
"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"
}
],
"summary": "npos-tesseract Command Injection vulnerability"
}
GHSA-MPX3-MX2P-9GV3
Vulnerability from github – Published: 2022-05-17 04:46 – Updated: 2022-07-07 22:51FitNesse Wiki 20131110, 20140201, and earlier allows remote attackers to execute arbitrary commands by defining a COMMAND_PATTERN and TEST_RUNNER in the pageContent parameter when editing a page.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.fitnesse:fitnesse"
},
"ranges": [
{
"events": [
{
"introduced": "20131110"
},
{
"fixed": "20140418"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2014-1216"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": true,
"github_reviewed_at": "2022-07-07T22:51:10Z",
"nvd_published_at": "2014-04-22T13:06:00Z",
"severity": "HIGH"
},
"details": "FitNesse Wiki 20131110, 20140201, and earlier allows remote attackers to execute arbitrary commands by defining a COMMAND_PATTERN and TEST_RUNNER in the pageContent parameter when editing a page.",
"id": "GHSA-mpx3-mx2p-9gv3",
"modified": "2022-07-07T22:51:10Z",
"published": "2022-05-17T04:46:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-1216"
},
{
"type": "WEB",
"url": "http://www.exploit-db.com/exploits/32568"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "Improper Neutralization of Special Elements used in a Command in FitNesse Wiki"
}
GHSA-MQ26-G339-26XF
Vulnerability from github – Published: 2023-10-25 18:32 – Updated: 2025-11-03 21:51When installing a package from a Mercurial VCS URL, e.g. pip install hg+..., with pip prior to v23.3, the specified Mercurial revision could be used to inject arbitrary configuration options to the hg clone call (e.g. --config). Controlling the Mercurial configuration can modify how and which repository is installed. This vulnerability does not affect users who aren't installing from Mercurial.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "pip"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "23.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-5752"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": true,
"github_reviewed_at": "2023-10-30T15:00:34Z",
"nvd_published_at": "2023-10-25T18:17:44Z",
"severity": "MODERATE"
},
"details": "When installing a package from a Mercurial VCS URL, e.g. `pip install hg+...`, with pip prior to v23.3, the specified Mercurial revision could be used to inject arbitrary configuration options to the `hg clone` call (e.g. `--config`). Controlling the Mercurial configuration can modify how and which repository is installed. This vulnerability does not affect users who aren\u0027t installing from Mercurial.",
"id": "GHSA-mq26-g339-26xf",
"modified": "2025-11-03T21:51:36Z",
"published": "2023-10-25T18:32:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-5752"
},
{
"type": "WEB",
"url": "https://github.com/pypa/pip/pull/12306"
},
{
"type": "WEB",
"url": "https://github.com/pypa/pip/commit/389cb799d0da9a840749fcd14878928467ed49b4"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pip/PYSEC-2023-228.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/pypa/pip"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00028.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/622OZXWG72ISQPLM5Y57YCVIMWHD4C3U"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65UKKF5LBHEFDCUSPBHUN4IHYX7SRMHH"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FXUVMJM25PUAZRQZBF54OFVKTY3MINPW"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KFC2SPFG5FLCZBYY2K3T5MFW2D22NG6E"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YBSB3SUPQ3VIFYUMHPO3MEQI4BJAXKCZ"
},
{
"type": "WEB",
"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/F4PL35U6X4VVHZ5ILJU3PWUWN7H7LZXL"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Command Injection in pip when used with Mercurial"
}
GHSA-MQ3R-9577-7HFP
Vulnerability from github – Published: 2022-05-24 19:19 – Updated: 2022-05-24 19:19In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, exporting collections via PDF export could lead to code execution via shell metacharacters in a collection name.
{
"affected": [],
"aliases": [
"CVE-2021-43266"
],
"database_specific": {
"cwe_ids": [
"CWE-77",
"CWE-78"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-11-02T22:15:00Z",
"severity": "HIGH"
},
"details": "In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, exporting collections via PDF export could lead to code execution via shell metacharacters in a collection name.",
"id": "GHSA-mq3r-9577-7hfp",
"modified": "2022-05-24T19:19:40Z",
"published": "2022-05-24T19:19:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43266"
},
{
"type": "WEB",
"url": "https://bugs.launchpad.net/mahara/+bug/1942903"
},
{
"type": "WEB",
"url": "https://bugs.launchpad.net/mahara/+bug/1949527"
},
{
"type": "WEB",
"url": "https://mahara.org/interaction/forum/topic.php?id=8952"
},
{
"type": "WEB",
"url": "https://mahara.org/interaction/forum/topic.php?id=8995"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
If at all possible, use library calls rather than external processes to recreate the desired functionality.
Mitigation
If possible, ensure that all external commands called from the program are statically created.
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.
Mitigation
Run time: Run time policy enforcement may be used in an allowlist fashion to prevent use of any non-sanctioned commands.
Mitigation
Assign permissions that prevent the user from accessing/opening privileged files.
CAPEC-136: LDAP Injection
An attacker manipulates or crafts an LDAP query for the purpose of undermining the security of the target. Some applications use user input to create LDAP queries that are processed by an LDAP server. For example, a user might provide their username during authentication and the username might be inserted in an LDAP query during the authentication process. An attacker could use this input to inject additional commands into an LDAP query that could disclose sensitive information. For example, entering a * in the aforementioned query might return information about all users on the system. This attack is very similar to an SQL injection attack in that it manipulates a query to gather additional information or coerce a particular return value.
CAPEC-15: Command Delimiters
An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or denylist input validation, as opposed to allowlist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or denylist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.
CAPEC-183: IMAP/SMTP Command Injection
An adversary exploits weaknesses in input validation on web-mail servers to execute commands on the IMAP/SMTP server. Web-mail servers often sit between the Internet and the IMAP or SMTP mail server. User requests are received by the web-mail servers which then query the back-end mail server for the requested information and return this response to the user. In an IMAP/SMTP command injection attack, mail-server commands are embedded in parts of the request sent to the web-mail server. If the web-mail server fails to adequately sanitize these requests, these commands are then sent to the back-end mail server when it is queried by the web-mail server, where the commands are then executed. This attack can be especially dangerous since administrators may assume that the back-end server is protected against direct Internet access and therefore may not secure it adequately against the execution of malicious commands.
CAPEC-248: Command Injection
An adversary looking to execute a command of their choosing, injects new items into an existing command thus modifying interpretation away from what was intended. Commands in this context are often standalone strings that are interpreted by a downstream component and cause specific responses. This type of attack is possible when untrusted values are used to build these command strings. Weaknesses in input validation or command construction can enable the attack and lead to successful exploitation.
CAPEC-40: Manipulating Writeable Terminal Devices
This attack exploits terminal devices that allow themselves to be written to by other users. The attacker sends command strings to the target terminal device hoping that the target user will hit enter and thereby execute the malicious command with their privileges. The attacker can send the results (such as copying /etc/passwd) to a known directory and collect once the attack has succeeded.
CAPEC-43: Exploiting Multiple Input Interpretation Layers
An attacker supplies the target software with input data that contains sequences of special characters designed to bypass input validation logic. This exploit relies on the target making multiples passes over the input data and processing a "layer" of special characters with each pass. In this manner, the attacker can disguise input that would otherwise be rejected as invalid by concealing it with layers of special/escape characters that are stripped off by subsequent processing steps. The goal is to first discover cases where the input validation layer executes before one or more parsing layers. That is, user input may go through the following logic in an application: <parser1> --> <input validator> --> <parser2>. In such cases, the attacker will need to provide input that will pass through the input validator, but after passing through parser2, will be converted into something that the input validator was supposed to stop.
CAPEC-75: Manipulating Writeable Configuration Files
Generally these are manually edited files that are not in the preview of the system administrators, any ability on the attackers' behalf to modify these files, for example in a CVS repository, gives unauthorized access directly to the application, the same as authorized users.
CAPEC-76: Manipulating Web Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.