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 5186

5186 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-2026-50619 Unauthenticated remote code execution vulnerability — Qsirch 9.3 Critical 2026-10-15
CVE-2026-34015 Remote Code Execution in upload.php of Video Station — Video Station 8.7 High 2026-10-15
CVE-2026-26243 Arbitrary Folder Deletion in Qsync Central 5.0.0.5 — Qsync Central 7.2 High 2026-10-15
CVE-2026-41544 Path Traversal leading to Arbitrary File Move, Docker Escape, and Host RCE in /calapi/renameUpload endpoint — QcalAgent 8.7 High 2026-10-15
CVE-2026-24718 Path Traversal Vulnerability in Qsync Central's qsyncsrv.cgi — Qsync Central 5.3 Medium 2026-10-15
CVE-2025-66275 Remote code execution via command injection — Video Station 7.7 High 2026-10-15
CVE-2025-66272 Arbitrary file deletion and remote code execution — Video Station 7.7 High 2026-10-15
CVE-2026-104107 FileRise: Authenticated path traversal escapes configured storage root through inherited ACLs — FileRise 6.5 Medium 2026-10-14
CVE-2026-0312 Checkov by Prisma Cloud: Path Traversal Vulnerabilities — Checkov by Prisma Cloud 4.3 Medium 2026-10-14
CVE-2026-62664 FileRise: Authenticated path traversal in createFolder allows arbitrary directory creation outside the upload root — FileRise 5.4 Medium 2026-10-14
CVE-2026-110766 Colanode Server through 0.4.7 Path Traversal via Avatar Download Route — colanode 4.3 Medium 2026-10-14
CVE-2026-110666 cemtan sar2html File Upload sar2html.py updateDb path traversal — sar2html 6.5 Medium 2026-10-14
CVE-2026-100406 dbt: Unauthenticated Arbitrary SQL Execution in `dbt docs serve` — dbt-core 8.2 High 2026-10-14
CVE-2026-104103 Ludwig: Path traversal in dataset archive extraction allows arbitrary file write via symlink members — ludwig 8.1 High 2026-10-14
CVE-2026-92153 F´: Arbitrary File Write in Svc::FileUplink via attacker-controlled StartPacket.destinationPath — fprime 7.1 High 2026-10-14
CVE-2026-110717 Janus WebRTC Server through 1.4.3 Path Traversal via Record&Play Filename — janus-gateway 5.3 Medium 2026-10-14
CVE-2026-110657 Khronos NNEF-Tools nnef through 1.0.10 and nnef-tools through 1.0.11 Path Traversal via Variable Label — nnef 3.3 Low 2026-10-14
CVE-2026-59774 Gitea Org-mode file disclosure and code execution — Gitea - - 2026-10-14
CVE-2026-101217 Dell Unisphere for PowerMax 9.2.4.x 目录遍历导致信息泄露 — Unisphere for PowerMax vApp 6.5 Medium 2026-10-14
CVE-2026-110458 UniFi Protect AI Key路径穿越漏洞 — UniFi Protect AI Key 3.7 Low 2026-10-14
CVE-2026-110457 UniFi Protect AI Key路径遍历漏洞 — UniFi Protect AI Key 3.7 Low 2026-10-14
CVE-2026-103820 CAI Content Credentials | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) — Content Credentials Rust SDK 5.5 Medium 2026-10-13
CVE-2026-90530 ColdFusion | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) — ColdFusion 2025 9.3 Critical 2026-10-13
CVE-2026-79715 IBM WebSphere Application Server Liberty Path Traversal — WebSphere Application Server - Liberty 5.5 Medium 2026-10-13
CVE-2026-63162 Omnispace Agora Project < 26.10.0 Path Traversal via tmpFolderName Parameter — Agora Project 8.8 High 2026-10-13
CVE-2026-106634 Adobe Experience Manager | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) — Adobe Experience Manager 6.5 LTS 7.7 High 2026-10-13
CVE-2026-102226 Dynamics Business Central Elevation of Privilege Vulnerability — Microsoft Dynamics NAV 2018 8.8 High 2026-10-13
CVE-2026-85932 Microsoft Office SharePoint Information Disclosure Vulnerability — Microsoft SharePoint Server Subscription Edition 6.5 Medium 2026-10-13
CVE-2026-70084 Windows Projected File System Information Disclosure Vulnerability — Windows 10 Version 1809 5.5 Medium 2026-10-13
CVE-2026-70298 Microsoft Office SharePoint Information Disclosure Vulnerability — Microsoft SharePoint Server Subscription Edition 6.5 Medium 2026-10-13

Vulnerabilities classified as CWE-22 (对路径名的限制不恰当(路径遍历)) represent 5186 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.