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Common Weakness Enumeration

CWE-35

Allowed

Path Traversal: '.../...//'

Abstraction: Variant · Status: Incomplete

The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '.../...//' (doubled triple dot slash) sequences that can resolve to a location that is outside of that directory.

358 vulnerabilities reference this CWE, most recent first.

GHSA-5GJJ-P5JQ-F47G

Vulnerability from github – Published: 2025-02-25 15:34 – Updated: 2026-04-01 18:33
VLAI
Details

Path Traversal vulnerability in CodeManas Search with Typesense allows Path Traversal. This issue affects Search with Typesense: from n/a through 2.0.8.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-26876"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-35"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-25T15:15:24Z",
    "severity": "MODERATE"
  },
  "details": "Path Traversal vulnerability in CodeManas Search with Typesense allows Path Traversal. This issue affects Search with Typesense: from n/a through 2.0.8.",
  "id": "GHSA-5gjj-p5jq-f47g",
  "modified": "2026-04-01T18:33:49Z",
  "published": "2025-02-25T15:34:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26876"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/wordpress/plugin/search-with-typesense/vulnerability/wordpress-search-with-typesense-plugin-2-0-8-path-traversal-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5RXF-FQCH-7VQP

Vulnerability from github – Published: 2023-09-13 15:31 – Updated: 2025-10-03 14:21
VLAI
Summary
NLnet Labs’ Routinator vulnerable to path traversal
Details

NLnet Labs’ Routinator 0.9.0 up to and including 0.12.1 contains a possible path traversal vulnerability in the optional, off-by-default keep-rrdp-responses feature that allows users to store the content of responses received for RRDP requests. The location of these stored responses is constructed from the URL of the request. Due to insufficient sanitation of the URL, it is possible for an attacker to craft a URL that results in the response being stored outside of the directory specified for it.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "routinator"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.9.0"
            },
            {
              "fixed": "0.12.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-39916"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-35"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-10-03T14:21:45Z",
    "nvd_published_at": "2023-09-13T15:15:07Z",
    "severity": "CRITICAL"
  },
  "details": "NLnet Labs\u2019 Routinator 0.9.0 up to and including 0.12.1 contains a possible path traversal vulnerability in the optional, off-by-default keep-rrdp-responses feature that allows users to store the content of responses received for RRDP requests. The location of these stored responses is constructed from the URL of the request. Due to insufficient sanitation of the URL, it is possible for an attacker to craft a URL that results in the response being stored outside of the directory specified for it.",
  "id": "GHSA-5rxf-fqch-7vqp",
  "modified": "2025-10-03T14:21:45Z",
  "published": "2023-09-13T15:31:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39916"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NLnetLabs/routinator/pull/892"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/NLnetLabs/routinator"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NLnetLabs/routinator/releases/tag/v0.12.2"
    },
    {
      "type": "WEB",
      "url": "https://nlnetlabs.nl/downloads/routinator/CVE-2023-39916.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "NLnet Labs\u2019 Routinator vulnerable to path traversal"
}

GHSA-5V3H-X4WF-5C35

Vulnerability from github – Published: 2026-05-07 01:23 – Updated: 2026-05-14 20:31
VLAI
Summary
Rancher Extensions have arbitrary file access via path traversal
Details

Impact

A vulnerability has been identified in Rancher's Extensions where malicious code can be injected in Rancher through a path traversal in the compressedEndpoint field inside a UIPlugin deployment. A malicious UI extension could abuse that to:

  • Overwrite Rancher binaries or configuration to inject code.
  • Write to /var/lib/rancher/ to tamper with cluster state.
  • If hostPath volumes are mounted, write to the host node filesystem.
  • Use this issue to chain with other attack vectors.

By default only the administrator can deploy UI extensions, unless permissions are granted to other users. It's always recommended to only install extensions that come from sources trusted by the user.

Please consult the associated MITRE CAPEC-126 - Technique - Path Traversal for further information about this category of attack.

Patches

This vulnerability is addressed by ensuring that:

  • The file defined by the UI Plugin CR's compressedEndpoint has to be created inside the cache directory and cannot contain ../. If that is not possible, the installation will fail and the file won't be created.
  • The icons referenced by Cluster Repos' index.yaml file always resolves to a file inside the repository directory.

Patched versions of Rancher include releases v2.14.1, v2.13.5, v2.12.9, v2.11.13.

Workarounds

There is no workaround. The user must be careful about which UI Plugins they install.

Resources

If there are any questions or comments about this advisory:

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rancher/rancher"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.14.0"
            },
            {
              "fixed": "2.14.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rancher/rancher"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.13.0"
            },
            {
              "fixed": "2.13.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rancher/rancher"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.12.0"
            },
            {
              "fixed": "2.12.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rancher/rancher"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.10.11"
            },
            {
              "fixed": "2.11.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-25705"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-35"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-07T01:23:59Z",
    "nvd_published_at": "2026-05-13T08:16:16Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nA vulnerability has been identified in [Rancher\u0027s Extensions](https://ranchermanager.docs.rancher.com/integrations-in-rancher/rancher-extensions) where malicious code can be injected in Rancher through a path traversal in the `compressedEndpoint` field inside a `UIPlugin` deployment. A malicious UI extension could abuse that to:\n\n- Overwrite Rancher binaries or configuration to inject code.\n- Write to `/var/lib/rancher/` to tamper with cluster state.\n- If `hostPath` volumes are mounted, write to the host node filesystem.\n- Use this issue to chain with other attack vectors.\n\nBy default only the administrator can deploy UI extensions, unless permissions are granted to other users. It\u0027s always recommended to only install extensions that come from sources trusted by the user.\n\nPlease consult the associated  [MITRE CAPEC-126 - Technique - Path Traversal](https://capec.mitre.org/data/definitions/126.html) for further information about this category of attack.\n\n### Patches\n\nThis vulnerability is addressed by ensuring that:\n\n- The file defined by the UI Plugin CR\u0027s `compressedEndpoint` has to be created inside the cache directory and cannot contain `../`. If that is not possible, the installation will fail and the file won\u0027t be created. \n- The icons referenced by Cluster Repos\u0027 `index.yaml` file always resolves to a file inside the repository directory.\n\nPatched versions of Rancher include releases v2.14.1, v2.13.5, v2.12.9, v2.11.13.\n\n### Workarounds\n\nThere is no workaround. The user must be careful about which UI Plugins they install.\n\n### Resources\n\nIf there are any questions or comments about this advisory:\n\n- Reach out to the [SUSE Rancher Security team](https://github.com/rancher/rancher/security/policy) for security related inquiries.\n- Open an issue in the [Rancher](https://github.com/rancher/rancher/issues/new/choose) repository.\n- Verify with the [support matrix](https://www.suse.com/suse-rancher/support-matrix/all-supported-versions/) and [product support lifecycle](https://www.suse.com/lifecycle/).",
  "id": "GHSA-5v3h-x4wf-5c35",
  "modified": "2026-05-14T20:31:20Z",
  "published": "2026-05-07T01:23:59Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/rancher/rancher/security/advisories/GHSA-5v3h-x4wf-5c35"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25705"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-25705"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rancher/rancher"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Rancher Extensions have arbitrary file access via path traversal"
}

GHSA-5VPP-FV65-GW43

Vulnerability from github – Published: 2024-12-18 21:30 – Updated: 2026-04-01 18:32
VLAI
Details

Path Traversal: '.../...//' vulnerability in VibeThemes WPLMS allows Path Traversal.This issue affects WPLMS: from n/a before 1.9.9.5.2.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-56055"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-35"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-18T19:15:13Z",
    "severity": "HIGH"
  },
  "details": "Path Traversal: \u0027.../...//\u0027 vulnerability in VibeThemes WPLMS allows Path Traversal.This issue affects WPLMS: from n/a before 1.9.9.5.2.",
  "id": "GHSA-5vpp-fv65-gw43",
  "modified": "2026-04-01T18:32:53Z",
  "published": "2024-12-18T21:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56055"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/Wordpress/Plugin/wplms_plugin/vulnerability/wordpress-wplms-plugin-1-9-9-5-2-arbitrary-directory-deletion-vulnerability?_s_id=cve"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/wordpress/plugin/wplms-plugin/vulnerability/wordpress-wplms-plugin-1-9-9-5-2-arbitrary-directory-deletion-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:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5X65-5VJ4-HXHR

Vulnerability from github – Published: 2024-10-06 15:32 – Updated: 2024-10-06 15:32
VLAI
Details

Multi-DNC – CWE-35: Path Traversal: '.../...//'

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-45248"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-35"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-06T13:15:15Z",
    "severity": "HIGH"
  },
  "details": "Multi-DNC \u2013 CWE-35: Path Traversal: \u0027.../...//\u0027",
  "id": "GHSA-5x65-5vj4-hxhr",
  "modified": "2024-10-06T15:32:28Z",
  "published": "2024-10-06T15:32:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45248"
    },
    {
      "type": "WEB",
      "url": "https://www.gov.il/en/Departments/faq/cve_advisories"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-624W-CG87-4JVW

Vulnerability from github – Published: 2025-01-07 12:30 – Updated: 2026-04-01 18:33
VLAI
Details

Path Traversal vulnerability in SMSA Express SMSA Shipping allows Path Traversal.This issue affects SMSA Shipping: from n/a through 2.3.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-49249"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-35"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-07T11:15:07Z",
    "severity": "HIGH"
  },
  "details": "Path Traversal vulnerability in SMSA Express SMSA Shipping allows Path Traversal.This issue affects SMSA Shipping: from n/a through 2.3.",
  "id": "GHSA-624w-cg87-4jvw",
  "modified": "2026-04-01T18:33:01Z",
  "published": "2025-01-07T12:30:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49249"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/wordpress/plugin/smsa-shipping-official/vulnerability/wordpress-smsa-shipping-plugin-2-3-arbitrary-file-deletion-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-62J6-3MX6-32XV

Vulnerability from github – Published: 2025-02-12 15:32 – Updated: 2025-02-12 15:32
VLAI
Details

A CWE-35 "Path Traversal" in maxtime/api/database/database.lua in Q-Free MaxTime less than or equal to version 2.11.0 allows an authenticated remote attacker to delete sensitive files via crafted HTTP requests.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-26355"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-35"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-12T14:15:35Z",
    "severity": "MODERATE"
  },
  "details": "A CWE-35 \"Path Traversal\" in maxtime/api/database/database.lua in Q-Free MaxTime less than or equal to version 2.11.0 allows an authenticated remote attacker to delete sensitive files via crafted HTTP requests.",
  "id": "GHSA-62j6-3mx6-32xv",
  "modified": "2025-02-12T15:32:01Z",
  "published": "2025-02-12T15:32:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26355"
    },
    {
      "type": "WEB",
      "url": "https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-26355"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-63XM-X5G2-5GR3

Vulnerability from github – Published: 2025-05-13 12:31 – Updated: 2025-05-13 12:31
VLAI
Details

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions). Affected devices are vulnerable to path traversal attacks. This could allow a privileged local attacker to restore backups that are outside the backup folder.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-40573"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-35"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-13T10:15:26Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions). Affected devices are vulnerable to path traversal attacks.\nThis could allow a privileged local attacker to restore backups that are outside the backup folder.",
  "id": "GHSA-63xm-x5g2-5gr3",
  "modified": "2025-05-13T12:31:36Z",
  "published": "2025-05-13T12:31:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40573"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-327438.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/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-64H4-VPPH-XC2H

Vulnerability from github – Published: 2026-02-03 06:31 – Updated: 2026-02-06 21:30
VLAI
Details

A vulnerability in Brocade Fabric OS before 9.2.1c2 could allow an authenticated attacker with admin privileges using the shell commands “source, ping6, sleep, disown, wait to modify the path variables and move upwards in the directory structure or to traverse to different directories.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-58381"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-35"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-03T06:15:52Z",
    "severity": "MODERATE"
  },
  "details": "A\n vulnerability in Brocade Fabric OS before 9.2.1c2 could allow an \nauthenticated attacker with admin privileges using the shell commands \n\u201csource, ping6, sleep, disown, wait to modify the path variables and \nmove upwards in the directory structure or to traverse to different \ndirectories.",
  "id": "GHSA-64h4-vpph-xc2h",
  "modified": "2026-02-06T21:30:48Z",
  "published": "2026-02-03T06:31:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-58381"
    },
    {
      "type": "WEB",
      "url": "https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/36853"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/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-669M-X2JM-GM59

Vulnerability from github – Published: 2026-04-01 09:31 – Updated: 2026-04-01 09:31
VLAI
Details

PowerStore, contains a Path Traversal vulnerability in the Service user. A low privileged attacker with local access could potentially exploit this vulnerability, leading to modification of arbitrary system files.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-28265"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-35"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-01T08:16:05Z",
    "severity": "MODERATE"
  },
  "details": "PowerStore, contains a Path Traversal vulnerability in the Service user. A low privileged attacker with local access could potentially exploit this vulnerability, leading to modification of arbitrary system files.",
  "id": "GHSA-669m-x2jm-gm59",
  "modified": "2026-04-01T09:31:27Z",
  "published": "2026-04-01T09:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28265"
    },
    {
      "type": "WEB",
      "url": "https://www.dell.com/support/kbdoc/en-us/000444169/dsa-2026-157-dell-powerstore-t-security-update-for-multiple-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation MIT-5.1
Implementation

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.
  • 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, the ".../...//" manipulation is useful for bypassing some path traversal protection schemes. If "../" sequences are removed from the ".../...//" string in a sequential fashion (as some regular expression engines and other algorithms operate) the string can collapse into the unsafe "../" value (CWE-182). Removing the first "../" yields "....//" and the second removal yields "../".
Mitigation MIT-20
Implementation

Strategy: Input Validation

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.

No CAPEC attack patterns related to this CWE.