Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CWE-22 (对路径名的限制不恰当(路径遍历)) — Vulnerability Class 5199

5199 vulnerabilities classified as CWE-22 (对路径名的限制不恰当(路径遍历)). AI Chinese analysis included.

CWE-22 represents a critical input validation weakness where software fails to properly sanitize external input before constructing file paths. Attackers typically exploit this vulnerability by injecting directory traversal sequences, such as “../”, into user-supplied parameters. These malicious inputs allow the application to resolve file references outside the intended restricted directory, potentially granting unauthorized access to sensitive system files, configuration data, or source code. To mitigate this risk, developers must implement rigorous input validation techniques, ensuring that all path components are strictly checked against allowed characters and structures. Additionally, employing canonicalization to resolve symbolic links and relative paths before validation, combined with strict chroot jails or sandboxing, effectively confines file operations to designated directories, thereby neutralizing the potential for path traversal attacks and preserving system integrity.

MITRE CWE Description
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. Many file operations are intended to take place within a restricted directory. By using special elements such as ".." and "/" separators, attackers can escape outside of the restricted location to access files or directories that are elsewhere on the system. One of the most common special elements is the "../" sequence, which in most modern operating systems is interpreted as the parent directory of the current location. This is referred to as relative path traversal. Path traversal also covers the use of absolute pathnames such as "/usr/local/bin" to access unexpected files. This is referred to as absolute path traversal.
Common Consequences (4)
Integrity, Confidentiality, Availability Execute Unauthorized Code or Commands
The attacker may be able to create or overwrite critical files that are used to execute code, such as programs or libraries.
Integrity Modify Files or Directories
The attacker may be able to overwrite or create critical files, such as programs, libraries, or important data. If the targeted file is used for a security mechanism, then the attacker may be able to bypass that mechanism. For example, appending a new account at the end of a password file may allow …
Confidentiality Read Files or Directories
The attacker may be able read the contents of unexpected files and expose sensitive data. If the targeted file is used for a security mechanism, then the attacker may be able to bypass that mechanism. For example, by reading a password file, the attacker could conduct brute force password guessing a…
Availability DoS: Crash, Exit, or Restart
The attacker may be able to overwrite, delete, or corrupt unexpected critical files such as programs, libraries, or important data. This may prevent the product from working at all and in the case of protection mechanisms such as authentication, it has the potential to lock out product users.
Mitigations (5)
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…
Architecture and Design 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.
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(…
Architecture and Design 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].
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].
Effectiveness: Moderate
Examples (2)
The following code could be for a social networking application in which each user's profile information is stored in a separate file. All files are stored in a single directory.
my $dataPath = "/users/cwe/profiles"; my $username = param("user"); my $profilePath = $dataPath . "/" . $username; open(my $fh, "<", $profilePath) || ExitError("profile read error: $profilePath"); print "<ul>\n"; while (<$fh>) { print "<li>$_</li>\n"; } print "</ul>\n";
Bad · Perl
../../../etc/passwd
Attack
In the example below, the path to a dictionary file is read from a system property and used to initialize a File object.
String filename = System.getProperty("com.domain.application.dictionaryFile"); File dictionaryFile = new File(filename);
Bad · Java
CVE ID Title CVSS Severity Published
CVE-2026-65431 Joomla Extension - regularlabs.com - Zipslip in GeoIP extension — GeoIP extension for Joomla - - 2026-07-23
CVE-2026-16078 WCPOS <= 1.9.8 - Authenticated (Shop Manager+) Path Traversal to Arbitrary File Read via 'type' Parameter — WCPOS – Point of Sale (POS) plugin for WooCommerce 6.5 Medium 2026-07-23
CVE-2026-15074 @fastify/static vulnerable to route guard bypass via path traversal — @fastify/static 7.5 High 2026-07-23
CVE-2026-16653 boazsegev facil.io Public Folder http.c http_sendfile2 path traversal — facil.io 5.3 Medium 2026-07-23
CVE-2026-13186 AppDataStorageProvider Path Traversal Deserialization Vulnerability in Telerik UI for ASP.NET AJAX — Telerik UI for ASP.NET AJAX 8.1 High 2026-07-22
CVE-2026-44192 Ansible-lightspeed: ansible lightspeed mcp server: remote code execution and data exfiltration via path traversal — Red Hat Ansible Automation Platform 2 6.6 Medium 2026-07-22
CVE-2026-65600 Traefik before v2.11.52 Authentication Bypass via ReplacePathRegex — traefik 7.8 High 2026-07-22
CVE-2026-56844 Veeam Backup and Replication 路径遍历漏洞 — Backup and Replication - - 2026-07-22
CVE-2026-47731 NASA AMMOS Instrument Toolkit: Path traversal resulting in arbitrary file append (can be triggered over the network by unauthenticated attacker) — AIT-Core 9.1 Critical 2026-07-21
CVE-2026-47425 Rattler vulnerable to entry-point path traversal in noarch:python install (arbitrary file write) — rattler 6.9 Medium 2026-07-21
CVE-2026-15724 Path traversal in Progress ShareFile Storage Zones Controller (SZC) — ShareFile Storage Zones Controller 8.7 High 2026-07-21
CVE-2026-15791 LLB file operation can be tricked to remove /tmp directory contents — BuildKit - - 2026-07-21
CVE-2026-15789 Malicious client can bypass destination directory validation on local sources upload — BuildKit - - 2026-07-21
CVE-2026-47397 PraisonAI has an Arbitrary File Write in Python API — PraisonAI 7.1 High 2026-07-21
CVE-2026-47394 PraisonAI vulnerable to unauthenticated arbitrary file read via MCP workflow.show, workflow.validate, deploy.validate — PraisonAI - - 2026-07-21
CVE-2026-64825 Home Assistant Core < 2026.6.0 Path Traversal File Write via Backup Upload — Home Assistant Core 9.3 Critical 2026-07-21
CVE-2026-64824 Home Assistant Core < 2026.7.0 Symlink Path Traversal RCE via backup-restore — Home Assistant Core 8.4 High 2026-07-21
CVE-2026-47121 Sparkle: Binary delta apply intermediate-symlink traversal in malicious .delta — Sparkle 6.1 Medium 2026-07-21
CVE-2026-47144 Shamefile has an arbitrary file read via shamefile.yaml in shame next — shamefile 5.5 Medium 2026-07-20
CVE-2026-56623 Apache MINA SSHD: Path traversal in org.apache.sshd:sshd-git on Windows — Apache MINA SSHD 7.1 High 2026-07-20
CVE-2026-56452 Apache MINA SSHD: Path traversal in SCP file reception — Apache MINA SSHD 7.5 High 2026-07-20
CVE-2026-53594 FreeScout has Arbitrary File Read in App Logs Viewer via Forged Encrypted Path — freescout 4.9 Medium 2026-07-20
CVE-2026-60027 Joomla Extension - themexpert.com - Unauthenticated path traversal / file read in Quix Page Builder < 6.2.1 — Quix Page Builder Pro extension for Joomla 8.7 High 2026-07-20
CVE-2026-46555 WhatsApp MCP: Unauthenticated bridge API allows message sending and arbitrary file exfiltration — whatsapp-mcp 7.7 High 2026-07-20
CVE-2026-58484 Network-AI: Poisoned environment backup manifest allows arbitrary recursive deletion during backup pruning — Network-AI 7.1 High 2026-07-20
CVE-2026-58481 Network-AI: AgentRuntime sandbox path-prefix checks allow file access outside the configured base directory — Network-AI 6.5 Medium 2026-07-20
CVE-2026-58414 Network-AI: EnvironmentManager.backup() follows symlinked directories and copies files outside the environment root into backups — Network-AI 5.5 Medium 2026-07-20
CVE-2026-58413 EnvironmentManager.restore() backup ID path traversal copies arbitrary directories into environment data — Network-AI 6.1 Medium 2026-07-20
CVE-2026-32820 dataCycle Public Markdown Path Traversal Via /docs/*path — dataCycle-CORE 7.5 High 2026-07-20
CVE-2026-46671 Rust OneNote File Parser: Path traversal in `Parser::parse_notebook` allows reading files outside the notebook directory — onenote.rs 4.4 Medium 2026-07-20

Vulnerabilities classified as CWE-22 (对路径名的限制不恰当(路径遍历)) represent 5199 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.