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.
5381 vulnerabilities reference this CWE, most recent first.
GHSA-X24G-9W7V-VPRH
Vulnerability from github – Published: 2022-05-26 00:01 – Updated: 2022-08-11 19:31HashiCorp go-getter before 2.0.2 allows Command Injection.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/hashicorp/go-getter"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "github.com/hashicorp/go-getter"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.1.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "github.com/hashicorp/go-getter/v2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "github.com/hashicorp/go-getter/s3/v2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "github.com/hashicorp/go-getter/gcs/v2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-26945"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": true,
"github_reviewed_at": "2022-06-01T21:20:55Z",
"nvd_published_at": "2022-05-25T12:15:00Z",
"severity": "CRITICAL"
},
"details": "HashiCorp go-getter before 2.0.2 allows Command Injection.",
"id": "GHSA-x24g-9w7v-vprh",
"modified": "2022-08-11T19:31:17Z",
"published": "2022-05-26T00:01:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-26945"
},
{
"type": "WEB",
"url": "https://github.com/hashicorp/go-getter/pull/359"
},
{
"type": "WEB",
"url": "https://github.com/hashicorp/go-getter/pull/361"
},
{
"type": "WEB",
"url": "https://github.com/hashicorp/go-getter/commit/38e97387488f5439616be60874979433a12edb48"
},
{
"type": "WEB",
"url": "https://github.com/hashicorp/go-getter/commit/a2ebce998f8d4105bd4b78d6c99a12803ad97a45"
},
{
"type": "WEB",
"url": "https://discuss.hashicorp.com"
},
{
"type": "WEB",
"url": "https://discuss.hashicorp.com/t/hcsec-2022-13-multiple-vulnerabilities-in-go-getter-library/39930"
},
{
"type": "PACKAGE",
"url": "https://github.com/hashicorp/go-getter"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2022-0586"
}
],
"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": "HashiCorp go-getter command injection"
}
GHSA-X26H-97QP-JH49
Vulnerability from github – Published: 2024-07-15 15:31 – Updated: 2024-07-15 15:31This vulnerability allows an unauthenticated attacker to achieve remote command execution on the affected PAM system by uploading a specially crafted PAM upgrade file.
{
"affected": [],
"aliases": [
"CVE-2024-38492"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-15T14:15:03Z",
"severity": "CRITICAL"
},
"details": "This vulnerability allows an unauthenticated attacker to achieve remote command execution on the affected PAM system by uploading a specially crafted PAM upgrade file.",
"id": "GHSA-x26h-97qp-jh49",
"modified": "2024-07-15T15:31:00Z",
"published": "2024-07-15T15:31:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38492"
},
{
"type": "WEB",
"url": "https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/24678"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:A/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-X28P-58GF-RH8C
Vulnerability from github – Published: 2026-03-12 18:30 – Updated: 2026-03-13 21:31GL-iNet GL-AR300M16 v4.3.11 was discovered to contain multiple command injection vulnerabilities in the set_upgrade function via the modem_url, target_version, current_version, firmware_upload, hash_type, hash_value, and upgrade_type parameters. These vulnerabilities allow attackers to execute arbitrary commands via a crafted input.
{
"affected": [],
"aliases": [
"CVE-2026-26792"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-12T18:16:22Z",
"severity": "CRITICAL"
},
"details": "GL-iNet GL-AR300M16 v4.3.11 was discovered to contain multiple command injection vulnerabilities in the set_upgrade function via the modem_url, target_version, current_version, firmware_upload, hash_type, hash_value, and upgrade_type parameters. These vulnerabilities allow attackers to execute arbitrary commands via a crafted input.",
"id": "GHSA-x28p-58gf-rh8c",
"modified": "2026-03-13T21:31:44Z",
"published": "2026-03-12T18:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26792"
},
{
"type": "WEB",
"url": "https://github.com/sezangel/IOT-vul/tree/main/GL-iNet/GL-AR300M16/set_upgrade"
}
],
"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-X29W-V458-J426
Vulnerability from github – Published: 2025-08-20 00:31 – Updated: 2025-08-20 00:31A security flaw has been discovered in neurobin shc up to 4.0.3. Impacted is the function make of the file src/shc.c of the component Environment Variable Handler. The manipulation results in os command injection. The attack is only possible with local access. The exploit has been released to the public and may be exploited.
{
"affected": [],
"aliases": [
"CVE-2025-9176"
],
"database_specific": {
"cwe_ids": [
"CWE-77",
"CWE-78"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-20T00:15:25Z",
"severity": "MODERATE"
},
"details": "A security flaw has been discovered in neurobin shc up to 4.0.3. Impacted is the function make of the file src/shc.c of the component Environment Variable Handler. The manipulation results in os command injection. The attack is only possible with local access. The exploit has been released to the public and may be exploited.",
"id": "GHSA-x29w-v458-j426",
"modified": "2025-08-20T00:31:20Z",
"published": "2025-08-20T00:31:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-9176"
},
{
"type": "WEB",
"url": "https://magnificent-dill-351.notion.site/Command-Execution-of-env-in-shc-4-0-3-249c693918ed80c997f4e9420f945d01"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.320557"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.320557"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.630744"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/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"
}
]
}
GHSA-X2F7-MWW2-V4HQ
Vulnerability from github – Published: 2025-05-01 18:31 – Updated: 2025-05-02 18:31TOTOLINK CA600-PoE V5.3c.6665_B20180820 was found to contain a command injection vulnerability in the CloudSrvUserdataVersionCheck function via the magicid parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.
{
"affected": [],
"aliases": [
"CVE-2025-44839"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-01T17:15:50Z",
"severity": "MODERATE"
},
"details": "TOTOLINK CA600-PoE V5.3c.6665_B20180820 was found to contain a command injection vulnerability in the CloudSrvUserdataVersionCheck function via the magicid parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.",
"id": "GHSA-x2f7-mww2-v4hq",
"modified": "2025-05-02T18:31:31Z",
"published": "2025-05-01T18:31:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-44839"
},
{
"type": "WEB",
"url": "https://github.com/Summermu/VulnForIoT/tree/main/Totolink_CA600-PoE/CloudSrvUserdataVersionCheck_magicid/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-X2HF-QG23-RJPX
Vulnerability from github – Published: 2025-12-26 18:30 – Updated: 2025-12-26 18:30An issue in Yealink T21P_E2 Phone 52.84.0.15 allows a remote normal privileged attacker to execute arbitrary code via a crafted request the ping function of the diagnostic component.
{
"affected": [],
"aliases": [
"CVE-2025-66738"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-26T16:15:44Z",
"severity": "MODERATE"
},
"details": "An issue in Yealink T21P_E2 Phone 52.84.0.15 allows a remote normal privileged attacker to execute arbitrary code via a crafted request the ping function of the diagnostic component.",
"id": "GHSA-x2hf-qg23-rjpx",
"modified": "2025-12-26T18:30:26Z",
"published": "2025-12-26T18:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66738"
},
{
"type": "WEB",
"url": "https://drive.google.com/file/d/13t5ywSPJMx4487njJcH3ZTNuc_k3h4ty/view?usp=sharing"
},
{
"type": "WEB",
"url": "http://yealink.com"
}
],
"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-X2PR-V4M9-C4HJ
Vulnerability from github – Published: 2023-11-15 00:31 – Updated: 2023-11-15 00:31Multiple authenticated command injection vulnerabilities exist in the command line interface. Successful exploitation of these vulnerabilities result in the ability to execute arbitrary commands as a privileged user on the underlying operating system.
{
"affected": [],
"aliases": [
"CVE-2023-45625"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-14T23:15:11Z",
"severity": "HIGH"
},
"details": "Multiple authenticated command injection vulnerabilities exist in the command line interface. Successful exploitation of these vulnerabilities result in the ability to execute arbitrary commands as a privileged user on the underlying operating system.\n\n",
"id": "GHSA-x2pr-v4m9-c4hj",
"modified": "2023-11-15T00:31:08Z",
"published": "2023-11-15T00:31:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45625"
},
{
"type": "WEB",
"url": "https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2023-017.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-X2VG-5WRF-VJ6V
Vulnerability from github – Published: 2024-03-10 03:30 – Updated: 2024-03-11 14:001Panel is vulnerable to command injection. This vulnerability has been classified as critical, has been found in 1Panel up to 1.10.1-lts. Affected by this issue is the function baseApi.UpdateDeviceSwap of the file /api/v1/toolbox/device/update/swap. The manipulation of the argument Path with the input 123123123\nopen -a Calculator leads to command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-256304.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/1Panel-dev/1Panel"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.1-lts"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-2352"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": true,
"github_reviewed_at": "2024-03-11T14:00:13Z",
"nvd_published_at": "2024-03-10T02:16:08Z",
"severity": "MODERATE"
},
"details": "1Panel is vulnerable to command injection. This vulnerability has been classified as critical, has been found in 1Panel up to 1.10.1-lts. Affected by this issue is the function baseApi.UpdateDeviceSwap of the file /api/v1/toolbox/device/update/swap. The manipulation of the argument Path with the input 123123123\\nopen -a Calculator leads to command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-256304.",
"id": "GHSA-x2vg-5wrf-vj6v",
"modified": "2024-03-11T14:00:13Z",
"published": "2024-03-10T03:30:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-2352"
},
{
"type": "WEB",
"url": "https://github.com/1Panel-dev/1Panel/pull/4131"
},
{
"type": "WEB",
"url": "https://github.com/1Panel-dev/1Panel/pull/4131#issue-2176105990"
},
{
"type": "WEB",
"url": "https://github.com/1Panel-dev/1Panel/pull/4131/commits/0edd7a9f6f5100aab98a0ea6e5deedff7700396c"
},
{
"type": "PACKAGE",
"url": "https://github.com/1Panel-dev/1Panel"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.256304"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.256304"
}
],
"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"
}
],
"summary": "1Panel is vulnerable to command injection "
}
GHSA-X2VG-C4CJ-X56W
Vulnerability from github – Published: 2022-05-24 19:12 – Updated: 2022-05-24 19:12A command-injection vulnerability in the Image Upload function of the NASCENT RemKon Device Manager 4.0.0.0 allows attackers to execute arbitrary commands, as root, via shell metacharacters in the filename parameter to assets/index.php.
{
"affected": [],
"aliases": [
"CVE-2021-38611"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-08-24T12:15:00Z",
"severity": "CRITICAL"
},
"details": "A command-injection vulnerability in the Image Upload function of the NASCENT RemKon Device Manager 4.0.0.0 allows attackers to execute arbitrary commands, as root, via shell metacharacters in the filename parameter to assets/index.php.",
"id": "GHSA-x2vg-c4cj-x56w",
"modified": "2022-05-24T19:12:05Z",
"published": "2022-05-24T19:12:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38611"
},
{
"type": "WEB",
"url": "https://www.blacklanternsecurity.com/2021-08-23-Nascent-RemKon-CVEs"
},
{
"type": "WEB",
"url": "https://www.nascent.com/single-post/2019/01/17/nascent-technology-releases-remkon-31-to-enhance-audio-experience"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-X2W7-3FFQ-RG3V
Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-28 15:39Netis AC1200 Router NC21 V4.0.1.4296 is vulnerable to unauthenticated command injection via the /cgi-bin/skk_set.cgi endpoint. The password and new_pwd_confirm POST parameters are passed directly to the underlying OS shell without sanitization. An attacker can inject arbitrary shell commands by wrapping them in backticks (`) and encoding them in base64. Because the endpoint requires no authentication, any device on the LAN can achieve full Remote Code Execution on the router's operating system with a single HTTP POST request.
{
"affected": [],
"aliases": [
"CVE-2026-36540"
],
"database_specific": {
"cwe_ids": [
"CWE-77"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-27T14:16:45Z",
"severity": "HIGH"
},
"details": "Netis AC1200 Router NC21 V4.0.1.4296 is vulnerable to unauthenticated command injection via the /cgi-bin/skk_set.cgi endpoint. The password and new_pwd_confirm POST parameters are passed directly to the underlying OS shell without sanitization. An attacker can inject arbitrary shell commands by wrapping them in backticks (`) and encoding them in base64. Because the endpoint requires no authentication, any device on the LAN can achieve full Remote Code Execution on the router\u0027s operating system with a single HTTP POST request.",
"id": "GHSA-x2w7-3ffq-rg3v",
"modified": "2026-05-28T15:39:44Z",
"published": "2026-05-27T15:33:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-36540"
},
{
"type": "WEB",
"url": "https://github.com/sir3ns/cve-disclosure/blob/main/CVE-2026-36540/readme.md"
},
{
"type": "WEB",
"url": "http://netis-system.com"
}
],
"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"
}
]
}
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.