Common Weakness Enumeration

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

CVE-2026-29522 (GCVE-0-2026-29522)

Vulnerability from cvelistv5 – Published: 2026-03-16 20:46 – Updated: 2026-03-17 13:36
VLAI
Title
ZwickRoell Test Data Management < 3.0.8 Path Traversal LFI
Summary
ZwickRoell Test Data Management versions prior to 3.0.8 contain a local file inclusion (LFI) vulnerability in the /server/node_upgrade_srv.js endpoint. An unauthenticated attacker can supply directory traversal sequences via the firmware parameter to access arbitrary files on the server, leading to information disclosure of sensitive system files.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
Impacted products
Credits
Arun Pratap Singh and Mayuresh Dani of Qualys
Show details on NVD website

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CVE-2026-2953 (GCVE-0-2026-2953)

Vulnerability from cvelistv5 – Published: 2026-02-22 14:02 – Updated: 2026-02-25 16:03
VLAI
Title
Dromara UJCMS Template WebFileTemplateController.delete deleteDirectory path traversal
Summary
A vulnerability has been found in Dromara UJCMS 101.2. This issue affects the function deleteDirectory of the file WebFileTemplateController.delete of the component Template Handler. Such manipulation leads to path traversal. The attack may be performed from remote. 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.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347319 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347319 signaturepermissions-required
https://vuldb.com/?submit.755215 third-party-advisory
https://www.yuque.com/la12138/pa2fpb/lxngf3d07uyd… exploit
Impacted products
Vendor Product Version
Dromara UJCMS Affected: 101.2
    cpe:2.3:a:ujcms:ujcms:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Saul1213 (VulDB User)
Show details on NVD website

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CVE-2026-29780 (GCVE-0-2026-29780)

Vulnerability from cvelistv5 – Published: 2026-03-07 15:22 – Updated: 2026-03-09 18:26
VLAI
Title
eml_parser: Path Traversal in Official Example Script Leading to Arbitrary File Write
Summary
eml_parser serves as a python module for parsing eml files and returning various information found in the e-mail as well as computed information. Prior to version 2.0.1, the official example script examples/recursively_extract_attachments.py contains a path traversal vulnerability that allows arbitrary file write outside the intended output directory. Attachment filenames extracted from parsed emails are directly used to construct output file paths without any sanitization, allowing an attacker-controlled filename to escape the target directory. This issue has been patched in version 2.0.1.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
Impacted products
Vendor Product Version
GOVCERT-LU eml_parser Affected: < 2.0.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-29786 (GCVE-0-2026-29786)

Vulnerability from cvelistv5 – Published: 2026-03-07 15:32 – Updated: 2026-06-30 12:07
VLAI
Title
node-tar: Hardlink Path Traversal via Drive-Relative Linkpath
Summary
node-tar is a full-featured Tar for Node.js. Prior to version 7.5.10, tar can be tricked into creating a hardlink that points outside the extraction directory by using a drive-relative link target such as C:../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This issue has been patched in version 7.5.10.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
Impacted products
Vendor Product Version
isaacs node-tar Affected: < 7.5.10
Create a notification for this product.
Red Hat Cryostat 4     cpe:/a:redhat:cryostat:4
Create a notification for this product.
Red Hat Logging Subsystem for Red Hat OpenShift     cpe:/a:redhat:logging:5
Create a notification for this product.
Red Hat Network Observability Operator     cpe:/a:redhat:network_observ_optr:1
Create a notification for this product.
Red Hat Red Hat 3scale API Management Platform 2     cpe:/a:redhat:red_hat_3scale_amp:2
Create a notification for this product.
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2     cpe:/a:redhat:acm:2
Create a notification for this product.
Red Hat Red Hat AMQ Broker 7     cpe:/a:redhat:amq_broker:7
Create a notification for this product.
Red Hat Red Hat build of Apache Camel - HawtIO 4     cpe:/a:redhat:apache_camel_hawtio:4
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
Create a notification for this product.
Red Hat Red Hat Fuse 7     cpe:/a:redhat:jboss_fuse:7
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 7     cpe:/a:redhat:jboss_enterprise_application_platform:7
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 8     cpe:/a:redhat:jboss_enterprise_application_platform:8
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack     cpe:/a:redhat:jbosseapxp
Create a notification for this product.
Red Hat Red Hat OpenShift AI (RHOAI)     cpe:/a:redhat:openshift_ai
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
Create a notification for this product.
Red Hat Red Hat Openshift Data Foundation 4     cpe:/a:redhat:openshift_data_foundation:4
Create a notification for this product.
Red Hat Red Hat OpenShift Dev Spaces     cpe:/a:redhat:openshift_devspaces:3
Create a notification for this product.
Red Hat Red Hat Process Automation 7     cpe:/a:redhat:jboss_enterprise_bpms_platform:7
Create a notification for this product.
Red Hat Red Hat Single Sign-On 7     cpe:/a:redhat:red_hat_single_sign_on:7
Create a notification for this product.
Red Hat Red Hat Trusted Artifact Signer     cpe:/a:redhat:trusted_artifact_signer:1
Create a notification for this product.
Show details on NVD website

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CVE-2026-29790 (GCVE-0-2026-29790)

Vulnerability from cvelistv5 – Published: 2026-03-06 20:37 – Updated: 2026-03-09 20:54
VLAI
Title
dbt-common: commonprefix() doesn't protect against path traversal
Summary
dbt-common is the shared common utilities for dbt-core and adapter implementations use. Prior to versions 1.34.2 and 1.37.3, a path traversal vulnerability exists in dbt-common's safe_extract() function used when extracting tarball archives. The function uses os.path.commonprefix() to validate that extracted files remain within the intended destination directory. However, commonprefix() compares paths character-by-character rather than by path components, allowing a malicious tarball to write files to sibling directories with matching name prefixes. This issue has been patched in versions 1.34.2 and 1.37.3.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
Impacted products
Vendor Product Version
dbt-labs dbt-common Affected: < 1.37.3
Affected: < 1.34.2
Create a notification for this product.
Show details on NVD website

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CVE-2026-3013 (GCVE-0-2026-3013)

Vulnerability from cvelistv5 – Published: 2026-03-11 14:58 – Updated: 2026-03-11 15:52 X_Open Source
VLAI
Title
Path Traversal in Coppermine Photo Gallery
Summary
Coppermine Photo Gallery in versions 1.6.09 through 1.6.27 is vulnerable to path traversal. Unauthenticated remote attacker is able to exploit a vulnerable endpoint and construct payloads that allow to read content of any file accessible by the the web server process.This issue was fixed in version 1.6.28.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
Impacted products
Vendor Product Version
Coppermine Photo Gallery Coppermine Photo Gallery Affected: 1.6.09 , < 1.6.28 (semver)
Create a notification for this product.
Date Public
2026-03-09 10:55
Credits
Jan Paweł Klim
Show details on NVD website

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CVE-2026-30234 (GCVE-0-2026-30234)

Vulnerability from cvelistv5 – Published: 2026-03-11 15:59 – Updated: 2026-03-11 17:18
VLAI
Title
OpenProject BIM BCF XML Import: <Snapshot> Path Traversal Leads to Arbitrary Local File Read (AFR)
Summary
OpenProject is an open-source, web-based project management software. Prior to 17.2.0, an authenticated project member with BCF import permissions can upload a crafted .bcf archive where the <Snapshot> value in markup.bcf is manipulated to contain an absolute or traversal local path (for example: /etc/passwd or ../../../../etc/passwd). During import, this untrusted <Snapshot> value is used as file.path during attachment processing. As a result, local filesystem content can be read outside the intended ZIP scope. This results in an Arbitrary File Read (AFR) within the read permissions of the OpenProject application user. This vulnerability is fixed in 17.2.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
opf openproject Affected: < 17.2.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-30240 (GCVE-0-2026-30240)

Vulnerability from cvelistv5 – Published: 2026-03-09 20:50 – Updated: 2026-03-10 15:22
VLAI
Title
Budibase PWA ZIP Upload Path Traversal Allows Reading Arbitrary Server Files Including All Environment Secrets
Summary
Budibase is a low code platform for creating internal tools, workflows, and admin panels. In 3.31.5 and earlier, a path traversal vulnerability in the PWA (Progressive Web App) ZIP processing endpoint (POST /api/pwa/process-zip) allows an authenticated user with builder privileges to read arbitrary files from the server filesystem, including /proc/1/environ which contains all environment variables — JWT secrets, database credentials, encryption keys, and API tokens. The server reads attacker-specified files via unsanitized path.join() with user-controlled input from icons.json inside the uploaded ZIP, then uploads the file contents to the object store (MinIO/S3) where they can be retrieved through signed URLs. This results in complete platform compromise as all cryptographic secrets and service credentials are exfiltrated in a single request.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-73 - External Control of File Name or Path
Assigner
References
Impacted products
Vendor Product Version
Budibase budibase Affected: <= 3.31.5
Create a notification for this product.
Show details on NVD website

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CVE-2026-3051 (GCVE-0-2026-3051)

Vulnerability from cvelistv5 – Published: 2026-02-24 01:02 – Updated: 2026-02-26 15:17
VLAI
Title
DataLinkDC dinky Project Name GitRepository.java getProjectDir path traversal
Summary
A vulnerability has been found in DataLinkDC dinky up to 1.2.5. The affected element is the function getProjectDir of the file dinky-admin/src/main/java/org/dinky/utils/GitRepository.java of the component Project Name Handler. Such manipulation of the argument projectName leads to path traversal. The attack may be performed from remote. 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.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347409 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347409 signaturepermissions-required
https://vuldb.com/?submit.757586 third-party-advisory
https://github.com/AnalogyC0de/public_exp/issues/5 issue-tracking
https://github.com/AnalogyC0de/public_exp/issues/… exploitissue-tracking
Impacted products
Vendor Product Version
DataLinkDC dinky Affected: 1.2.0
Affected: 1.2.1
Affected: 1.2.2
Affected: 1.2.3
Affected: 1.2.4
Affected: 1.2.5
Create a notification for this product.
Credits
Ana10gy (VulDB User)
Show details on NVD website

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CVE-2026-3067 (GCVE-0-2026-3067)

Vulnerability from cvelistv5 – Published: 2026-02-24 03:32 – Updated: 2026-02-24 18:47
VLAI
Title
HummerRisk Archive Extraction CommandUtils.java extractZip path traversal
Summary
A vulnerability has been found in HummerRisk up to 1.5.0. This issue affects the function extractTarGZ/extractZip of the file hummer-common/hummer-common-core/src/main/java/com/hummer/common/core/utils/CommandUtils.java of the component Archive Extraction. The manipulation leads to path traversal. The attack is possible to be carried out 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.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347418 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347418 signaturepermissions-required
https://vuldb.com/?submit.757763 third-party-advisory
https://github.com/AnalogyC0de/public_exp/issues/11 exploitissue-tracking
Impacted products
Vendor Product Version
n/a HummerRisk Affected: 1.0
Affected: 1.1
Affected: 1.2
Affected: 1.3
Affected: 1.4
Affected: 1.5.0
Credits
Ana10gy (VulDB User)
Show details on NVD website

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      "references": [
        {
          "name": "VDB-347418 | HummerRisk Archive Extraction CommandUtils.java extractZip path traversal",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.347418"
        },
        {
          "name": "VDB-347418 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.347418"
        },
        {
          "name": "Submit #757763 | HummerRisk \u003c=1.5.0 Path Traversal via Zip Slip",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.757763"
        },
        {
          "tags": [
            "exploit",
            "issue-tracking"
          ],
          "url": "https://github.com/AnalogyC0de/public_exp/issues/11"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-23T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-02-23T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-02-23T19:56:16.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "HummerRisk Archive Extraction CommandUtils.java extractZip path traversal"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-3067",
    "datePublished": "2026-02-24T03:32:07.867Z",
    "dateReserved": "2026-02-23T18:51:08.121Z",
    "dateUpdated": "2026-02-24T18:47:21.803Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Mitigation ID: MIT-5.1

Phase: Implementation

Strategy: Input Validation

Description:

  • 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.
  • When validating filenames, use stringent allowlists that limit the character set to be used. If feasible, only allow a single "." character in the filename to avoid weaknesses such as CWE-23, and exclude directory separators such as "/" to avoid CWE-36. Use a list of allowable file extensions, which will help to avoid CWE-434.
  • Do not rely exclusively on a filtering mechanism that removes potentially dangerous characters. This is equivalent to a denylist, which may be incomplete (CWE-184). For example, filtering "/" is insufficient protection if the filesystem also supports the use of "\" as a directory separator. Another possible error could occur when the filtering is applied in a way that still produces dangerous data (CWE-182). For example, if "../" sequences are removed from the ".../...//" string in a sequential fashion, two instances of "../" would be removed from the original string, but the remaining characters would still form the "../" string.
Mitigation ID: MIT-15

Phase: Architecture and Design

Description:

  • 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 ID: MIT-20.1

Phase: Implementation

Strategy: Input Validation

Description:

  • Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
  • Use a built-in path canonicalization function (such as realpath() in C) that produces the canonical version of the pathname, which effectively removes ".." sequences and symbolic links (CWE-23, CWE-59). This includes:
  • realpath() in C
  • getCanonicalPath() in Java
  • GetFullPath() in ASP.NET
  • realpath() or abs_path() in Perl
  • realpath() in PHP
Mitigation ID: MIT-4

Phase: Architecture and Design

Strategy: Libraries or Frameworks

Description:

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
Mitigation ID: MIT-29

Phase: Operation

Strategy: Firewall

Description:

  • Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].
Mitigation ID: MIT-17

Phases: Architecture and Design, Operation

Strategy: Environment Hardening

Description:

  • 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 ID: MIT-21.1

Phase: Architecture and Design

Strategy: Enforcement by Conversion

Description:

  • 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.
  • For example, ID 1 could map to "inbox.txt" and ID 2 could map to "profile.txt". Features such as the ESAPI AccessReferenceMap [REF-185] provide this capability.
Mitigation ID: MIT-22

Phases: Architecture and Design, Operation

Strategy: Sandbox or Jail

Description:

  • 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.
Mitigation ID: MIT-34

Phases: Architecture and Design, Operation

Strategy: Attack Surface Reduction

Description:

  • Store library, include, and utility files outside of the web document root, if possible. Otherwise, store them in a separate directory and use the web server's access control capabilities to prevent attackers from directly requesting them. One common practice is to define a fixed constant in each calling program, then check for the existence of the constant in the library/include file; if the constant does not exist, then the file was directly requested, and it can exit immediately.
  • This significantly reduces the chance of an attacker being able to bypass any protection mechanisms that are in the base program but not in the include files. It will also reduce the attack surface.
Mitigation ID: MIT-39

Phase: Implementation

Description:

  • Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success.
  • If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files.
  • Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.
  • In the context of path traversal, error messages which disclose path information can help attackers craft the appropriate attack strings to move through the file system hierarchy.
Mitigation ID: MIT-16

Phases: Operation, Implementation

Strategy: Environment Hardening

Description:

  • When using PHP, configure the application so that it does not use register_globals. During implementation, develop the application so that it does not rely on this feature, but be wary of implementing a register_globals emulation that is subject to weaknesses such as CWE-95, CWE-621, and similar issues.
CAPEC-126: Path Traversal

An adversary uses path manipulation methods to exploit insufficient input validation of a target to obtain access to data that should be not be retrievable by ordinary well-formed requests. A typical variety of this attack involves specifying a path to a desired file together with dot-dot-slash characters, resulting in the file access API or function traversing out of the intended directory structure and into the root file system. By replacing or modifying the expected path information the access function or API retrieves the file desired by the attacker. These attacks either involve the attacker providing a complete path to a targeted file or using control characters (e.g. path separators (/ or \) and/or dots (.)) to reach desired directories or files.

CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic

This attack targets the encoding of the URL combined with the encoding of the slash characters. An attacker can take advantage of the multiple ways of encoding a URL and abuse the interpretation of the URL. A URL may contain special character that need special syntax handling in order to be interpreted. Special characters are represented using a percentage character followed by two digits representing the octet code of the original character (%HEX-CODE). For instance US-ASCII space character would be represented with %20. This is often referred as escaped ending or percent-encoding. Since the server decodes the URL from the requests, it may restrict the access to some URL paths by validating and filtering out the URL requests it received. An attacker will try to craft an URL with a sequence of special characters which once interpreted by the server will be equivalent to a forbidden URL. It can be difficult to protect against this attack since the URL can contain other format of encoding such as UTF-8 encoding, Unicode-encoding, etc.

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.

CAPEC-78: Using Escaped Slashes in Alternate Encoding

This attack targets the use of the backslash in alternate encoding. An adversary can provide a backslash as a leading character and causes a parser to believe that the next character is special. This is called an escape. By using that trick, the adversary tries to exploit alternate ways to encode the same character which leads to filter problems and opens avenues to attack.

CAPEC-79: Using Slashes in Alternate Encoding

This attack targets the encoding of the Slash characters. An adversary would try to exploit common filtering problems related to the use of the slashes characters to gain access to resources on the target host. Directory-driven systems, such as file systems and databases, typically use the slash character to indicate traversal between directories or other container components. For murky historical reasons, PCs (and, as a result, Microsoft OSs) choose to use a backslash, whereas the UNIX world typically makes use of the forward slash. The schizophrenic result is that many MS-based systems are required to understand both forms of the slash. This gives the adversary many opportunities to discover and abuse a number of common filtering problems. The goal of this pattern is to discover server software that only applies filters to one version, but not the other.

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