Weakness (CWE)
CWE-23: Relative Path Traversal
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.
How to prevent it (3 mitigations)
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Implementation
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.
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Implementation
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
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Operation
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].
Source: MITRE CWE-23
201 results · Clear filters · Feed
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Medium 6.5
Mockoon: Path traversal in templated `filePath` lets a request escape the served directory (prefix-only base check)
Mockoon provides way to design and run mock APIs. Prior to 9.7.0, a FILE response whose filePath embeds request data is confined by getSafeFilePath in packages/commons-server/src/libs/server/server.ts with resolvedPath.startsWith(staticBaseDir). That prefix t…
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Medium 4.5
Authenticated Path Traversal allows MOVEit admins to view arbitrary system files
Relative path traversal vulnerability in Progress MOVEit Transfer (Admin Settings module). This issue affects MOVEit Transfer: before 2025.0.7, from 2025.1.0 before 2025.1.3.
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Medium 4.2
scp in OpenSSH before 10.4 may place a file in the parent directory of an intended directory when the copy occurs betwe…
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Medium 4.2
sftp in OpenSSH before 10.4 does not properly constrain the location of downloaded files when "sftp server:/path ." is …
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Medium 6.8
Microsoft Edge for Android Information Disclosure Vulnerability
Relative path traversal in Microsoft Edge for Android allows an unauthorized attacker to disclose information locally.
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Medium 5.3
Path Traversal in Rancher Fleet ImageScan GitRepo Path Handler
A path traversal vulnerability was found in Fleet's ImageScan subsystem in Rancher Fleet 0.12.0 up to 0.12.16, 0.13.0 up to 0.13.12, 0.14.0 up to 0.14.7 and 0.15.0 up to 0.15.3 could be used to traverse outside of the intended directory, causing a denial of s…
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Medium 5.1
MicroCeph path traversal issue in the remote-import API
Canonical MicroCeph versions from the squid and tentacle track are vulnerable to a path traversal issue in the remote-import API. Holders of a trusted cluster mTLS certificate (such as enrolled cluster members) or join token can manipulate files in an importe…
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Medium 6.5
Visual Studio Code Tampering Vulnerability
Relative path traversal in Visual Studio Code allows an unauthorized attacker to perform tampering over a network.
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Medium 5.9
OpenStack Ironic allows file overwrite via directory traversal during deployment with a crafted ISO image
OpenStack Ironic through before 35.0.2 allows file overwrite via directory traversal during deployment with a crafted ISO image.
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Medium 6.8
Path Traversal in jupyter/jupyter
A path traversal vulnerability exists in jupyter-server version 2.17.0 due to an incorrect root directory boundary check in the _get_os_path() function within jupyter_server/services/contents/fileio.py. The check uses startswith(root) without appending a trai…
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Medium 4.9
Interinfo｜DreamMaker - Arbitrary File Read
DreamMaker developed by Interinfo has an Arbitrary File Read vulnerability, allowing privileged local attackers to exploit Relative Path Traversal to download arbitrary system files.
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Medium 6.7
A directory traversal vulnerability in the Apex One (on-premise) server could allow a pre-authenticated local attacker …
KEV May 21, 2026 -
Medium 5.5
Visual Studio Code Information Disclosure Vulnerability
Relative path traversal in Visual Studio Code allows an unauthorized attacker to disclose information locally.
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Medium 6.9
Gibbon versions before v30.0.01 are affected by a path traversal vulnerability resulting in DOS by attempting extractio…
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Medium 4.3
OpenC3 COSMOS: Arbitrary write to plugins directory via path-traversed config filenames
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to versions 6.10.5 and 7.0.0-rc3, OpenC3 COSMOS contains a design flaw in the save_tool_config() function that allows saving tool con…
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Medium 6.5
nbconvert has an Arbitrary File Read via Path Traversal in HTMLExporter Image Embedding
The nbconvert tool, jupyter nbconvert, converts Jupyter notebooks to various other formats via Jinja templates. In versions 6.5 through 7.17.0, when `HTMLExporter.embed_images=True`, nbconvert's markdown renderer allows arbitrary file read via path traversal …
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Medium 4.9
Anviz CX7 Firmware Relative Path Traversal
Anviz CX7 Firmware is vulnerable to an authenticated CSV upload which allows path traversal to overwrite arbitrary files (e.g., /etc/shadow), enabling unauthorized SSH access when combined with debug‑setting changes.
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Medium 6.5
Cisco Unity Connection Arbitrary File Download Vulnerability
Multiple vulnerabilities in Cisco Unity Connection could allow an authenticated, remote attacker to download arbitrary files from an affected system. To exploit these vulnerabilities, the attacker must have valid administrative credentials. These v…
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Medium 6.5
Cisco Unity Connection Arbitrary File Download Vulnerability
Multiple vulnerabilities in Cisco Unity Connection could allow an authenticated, remote attacker to download arbitrary files from an affected system. To exploit these vulnerabilities, the attacker must have valid administrative credentials. These v…
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Medium 6.2
Multiple Relative Path Traversal vulnerabilities [CWE-23] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, Forti…
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Medium 5.7
A Relative Path Traversal vulnerability in Nokia MantaRay NM
Nokia MantaRay NM is vulnerable to a Relative Path Traversal vulnerability due to improper validation of input parameter on the file system in Software Manager application.
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Medium 4.9
SuiteCRM Vulnerable to Directory Traversal to DoS in Modules
SuiteCRM is an open-source, enterprise-ready Customer Relationship Management (CRM) software application. Prior to versions 7.15.1 and 8.9.3, a Denial-of-Service (DoS) vulnerability exists in SuiteCRM modules. Versions 7.15.1 and 8.9.3 patch the issue.
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Medium 4.9
SuiteCRM has Relative Path Traversal via ModuleBuilder Modules ExportCustom Action
SuiteCRM is an open-source, enterprise-ready Customer Relationship Management (CRM) software application. Prior to versions 7.15.1 and 8.9.3, the `action_exportCustom` function in `modules/ModuleBuilder/controller.php` fails to properly neutralize path traver…
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Medium 5.5
bit7z has a path traversal vulnerability
bit7z is a cross-platform C++ static library that allows the compression/extraction of archive files. Prior to version 4.0.11, a path traversal vulnerability ("Zip Slip") exists in bit7z's archive extraction functionality. The library does not adequately vali…
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Medium 5.9
vlt Mishandles Path Sanitization for tar
vlt before 1.0.0-rc.10 mishandles path sanitization for tar, leading to path traversal during extraction.
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Medium 6.5
pnpm scoped bin name Path Traversal allows arbitrary file creation outside node_modules/.bin
pnpm is a package manager. Prior to version 10.28.1, a path traversal vulnerability in pnpm's bin linking allows malicious npm packages to create executable shims or symlinks outside of `node_modules/.bin`. Bin names starting with `@` bypass validation, and a…
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Medium 6.5
pnpm: Binary ZIP extraction allows arbitrary file write via path traversal (Zip Slip)
pnpm is a package manager. Prior to version 10.28.1, a path traversal vulnerability in pnpm's binary fetcher allows malicious packages to write files outside the intended extraction directory. The vulnerability has two attack vectors: (1) Malicious ZIP entrie…
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Medium 4.3
Yealink T21P_E2 Phone 52.84.0.15 is vulnerable to Directory Traversal. A remote normal privileged attacker can read arb…
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Medium 5.0
In CKSource CKFinder before 2.5.0.1 for ASP.NET, authenticated users could download any file from the server if the cor…
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Medium 6.5
Uniong｜WebITR - Arbitrary File Read
WebITR developed by Uniong has an Arbitrary File Read vulnerability, allowing authenticated remote attackers to exploit Relative Path Traversal to download arbitrary system files.
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Medium 4.1
app/Model/EventReport.php in MISP before 2.5.27 allows path traversal in view picture for a site-admin.
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Medium 5.3
A Path Traversal vulnerability has been identified in the Email Security appliance allows an attacker to manipulate fil…
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Medium 5.3
code-projects Email Logging Interface signup.cpp path traversal
A vulnerability was found in code-projects Email Logging Interface 2.0. Affected is an unknown function of the file signup.cpp. The manipulation of the argument Username results in path traversal: '../filedir'. The attack is only possible with local access. T…
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Medium 5.8CVE-2025-64714 Public exploit
PrivateBin's template-switching feature allows arbitrary local file inclusion through path traversal
PrivateBin is an online pastebin where the server has zero knowledge of pasted data. Starting in version 1.7.7 and prior to version 2.0.3, an unauthenticated Local File Inclusion exists in the template-switching feature. If `templateselection` is enabled in t…
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Medium 4.3
Dell Secure Connect Gateway (SCG) 5.0 Application and Appliance version(s) 5.26.00.00 - 5.30.00.00, contain a Relative …
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Medium 4.0
AutomationDirect Productivity Suite Relative Path Traversal
A relative path traversal vulnerability was discovered in Productivity Suite software version 4.4.1.19. The vulnerability allows an unauthenticated remote attacker to interact with the ProductivityService PLC simulator and delete arbitrary directories on the …
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Medium 4.0
AutomationDirect Productivity Suite Relative Path Traversal
A relative path traversal vulnerability was discovered in Productivity Suite software version 4.4.1.19. The vulnerability allows an unauthenticated remote attacker to interact with the ProductivityService PLC simulator and create arbitrary directories on the …
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Medium 6.8
AutomationDirect Productivity Suite Relative Path Traversal
A relative path traversal vulnerability was discovered in Productivity Suite software version 4.4.1.19. The vulnerability allows an unauthenticated remote attacker to interact with the ProductivityService PLC simulator and read arbitrary files on the target m…
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Medium 6.5
Slider Revolution <= 6.7.37 - Missing Authorization to Authenticated (Contributor+) Arbitrary File Read
The Slider Revolution plugin for WordPress is vulnerable to unauthorized access and modification of data due to a missing capability check on several functions in all versions up to, and including, 6.7.37. This makes it possible for authenticated attackers, w…
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Medium 6.4
nncp before 8.12.0 allows path traversal (for reading or writing) during freqing and file saving via a crafted path in …