Weakness (CWE)
CWE-25: Path Traversal: '/../filedir'
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize "/../" sequences that can resolve to a location that is outside of that directory.
How to prevent it (2 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.
Source: MITRE CWE-25
16 results · Feed
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High 8.5
SKYSEA Client View and SKYMEC IT Manager contain a path traversal vulnerability. If this vulnerability is exploited, an…
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Medium 5.3
Directory Traversal & Filesystem can be accessed by a non-admin user
Swing Music is a self-hosted music player for local audio files. Prior to version 2.1.4, Swing Music's `list_folders()` function in the `/folder/dir-browser` endpoint is vulnerable to directory traversal attacks. Any authenticated user (including non-admin) c…
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Critical 9.1
Riello UPS NetMan 208 Application before 1.12 allows cgi-bin/certsupload.cgi /../ directory traversal for file upload w…
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Low 3.3
Denial of service (DoS) vulnerability in the office service. Successful exploitation of this vulnerability may affect a…
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Medium 4.3
Tsinghua Unigroup Electronic Archives System exampleDownload.html path traversal
A vulnerability classified as problematic was found in Tsinghua Unigroup Electronic Archives System 3.2.210802(62532). Affected by this vulnerability is an unknown functionality of the file /setting/ClassFy/exampleDownload.html. The manipulation of the argume…
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High 7.7
Malicious plugin names, recipients, or identities can cause arbitrary binary execution in pyrage
pyrage is a set of Python bindings for the rage file encryption library (age in Rust). `pyrage` uses the Rust `age` crate for its underlying operations, and `age` is vulnerable to GHSA-4fg7-vxc8-qx5w. All details of GHSA-4fg7-vxc8-qx5w are relevant to `pyrage…
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Medium —
age vulnerable to malicious plugin names, recipients, or identities causing arbitrary binary execution
A plugin name containing a path separator may allow an attacker to execute an arbitrary binary. Such a plugin name can be provided to the age CLI through an attacker-controlled recipient or identity string, or to the [`plugin.NewIdentity`](https://pkg.go.dev/…
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Medium —
rage vulnerable to malicious plugin names, recipients, or identities causing arbitrary binary execution
A plugin name containing a path separator may allow an attacker to execute an arbitrary binary. Such a plugin name can be provided to the `rage` CLI through an attacker-controlled recipient or identity string, or to the following `age` APIs when the `plugin` …
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High 7.7
Best WordPress Gallery Plugin – FooGallery <= 2.4.16 - Authenticated (Contributor+) Directory Traversal
The Best WordPress Gallery Plugin – FooGallery plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.4.26. This makes it possible for authenticated attackers, with contributor level or higher to read the contents of…
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High 7.5
Path Traversal vulnerability in Franklin Fueling System EVO 550/5000
Franklin Fueling System EVO 550 and EVO 5000 are vulnerable to a Path Traversal vulnerability that could allow an attacker to access sensitive files on the system.
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High 8.2
Path traversal via crafted cpio archives in Engrampa archivers
Engrampa is an archive manager for the MATE environment. Engrampa is found to be vulnerable to a Path Traversal vulnerability that can be leveraged to achieve full Remote Command Execution (RCE) on the target. While handling CPIO archives, the Engrampa Archiv…
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High 7.5
Path Traversal in VGuard IP Camera Network Recorder
Path Traversal: '/../filedir' vulnerability in Biges Safe Life Technologies Electronics Inc. VGuard allows Absolute Path Traversal. This issue affects VGuard: before V500.0003.R008.4011.C0012.B351.C.
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High 8.5CVE-2023-52076 Public exploit
Remote Code Execution Vulnerability in Atril's EPUB ebook parsing
Atril Document Viewer is the default document reader of the MATE desktop environment for Linux. A path traversal and arbitrary file write vulnerability exists in versions of Atril prior to 1.26.2. This vulnerability is capable of writing arbitrary files anywh…
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High 7.5
Path Traversal in Neutron IP Camera
Path Traversal: '/../filedir' vulnerability in Neutron IP Camera allows Absolute Path Traversal. This issue affects IP Camera: before b1130.1.0.1.
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High 7.8CVE-2022-20818 Public exploit
Cisco SD-WAN Software Privilege Escalation Vulnerabilities
Multiple vulnerabilities in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain elevated privileges. These vulnerabilities are due to improper access controls on commands within the application CLI. An attacker could exploit …
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High 7.8
Cisco SD-WAN Software Privilege Escalation Vulnerability
A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain elevated privileges. This vulnerability is due to improper access controls on commands within the application CLI. An attacker could exploit this vulnerab…
KEV Feb 25, 2026