NetSec-CVE-2023-4357

ネットワークセキュリティプロジェクト — CVE-2023-4357 概要 このプロジェクトは、ネットワークセキュリティコースの最終プロジェクトです。 このプロジェクトは、Google Chrome 116.0.5845.96 より前のバージョンに影響する脆弱性 CVE-2023-4357 に焦点を当てています。この脆弱性は XML/XSLT の処理に関連しており、悪意のあるドキュメントが意図されたファイルアクセス制限を回避できる可能性があります。 再現 私は仮想マシン上で古いバージョンの Google Chrome を使用してこの脆弱性を再現し、XML...

CVE-2023-4357-Exploitation

CVE-2023-4357-Exploitation ネットワークセキュリティプロジェクト 説明 Google Chrome 116.0.5845.96 より前のバージョンにおいて、XML 内の信頼できない入力の検証が不十分であったため、リモートの攻撃者が細工した HTML ページを介してファイルアクセス制限を回避できる可能性がありました。 再現手順 環境のセットアップ Linux に Chrome をダウンロード root@kitploit: $ wget...

CVE-2025-30208

CVE-2025-30208 特殊な raw import クエリ文字列を使用することで、Vite 開発サーバー上で攻撃者が任意のファイルを読み取ることができます。 Summary of the CVE Vite 開発サーバーのバージョン 6.2.3 未満、6.1.2 未満、6.0.12 未満、5.4.15 未満、4.5.10 未満では、@fs リクエストに対する server.fs.deny ファイルアクセスチェックがバイパスされる可能性があります。@fs URL に ?raw?? または ?import&raw??...

CVE-2026-90930: Improper Link Resolution Before File Access

File Browser through 2.63.23 applies path rules to the requested lexical path but resolves symbolic links without reapplying rules to the target, allowing authenticated users to bypass deny rules. Attackers can read and overwrite rule-denied files by accessing them through in-scope symbolic link...

CVE-2026-73653

A flaw was found in Vitest. A remote attacker, by sending specially crafted commands to the Browser Mode API, could bypass file access restrictions. This allows the attacker to read, create, overwrite, or delete arbitrary files on the system where Vitest is running, even when file write permissio...

Linux Distros Unpatched Vulnerability : CVE-2026-82659

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nodemailer before 9.0.1 fails to apply disableFileAccess and disableUrlAccess flags to message-level raw option, allowing authenticated attackers to read...

EUVD-2026-63268

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an arbitrary file read and write vulnerability in the Snowflake node, which passes free-form Execute Query input, including client-side commands, directly to the Snowflake SDK without applying n8n's file-access restrictions...

CVE-2026-7120 @fastify/static vulnerable to Authorization Bypass via Non-Canonical URL Paths

@fastify/static evaluates the allowedPath callback before normalizing dot segments and duplicate path separators in the pathname used for file resolution. Versions up to and including 10.1.1 are affected. An unauthenticated attacker can bypass allowedPath restrictions by requesting equivalent...

CVE-2026-62230

Grav

CVE-2026-62230 Grav < 2.0.4 File Access Bypass via Case Variation

Grav before 2.0.4 ships a default .htaccess and reference webserver-configs/htaccess.txt whose rules blocking access to sensitive file types .yaml, .php, .json, etc. lack the NC flag, making extension matching case-sensitive. On case-insensitive filesystems Windows/NTFS, macOS/HFS+, or Docker...

CVE-2026-56352 n8n - Arbitrary File Read and Execution via ExecuteWorkflow localFile Parameter

n8n before 2.19.3 contains a file path restriction bypass in the legacy ExecuteWorkflow node's localFile source option, which reads workflow files from disk without the file-access checks enforced by other file-reading nodes. Although hidden from the UI since v1.2, it remains reachable via the RE...

CVE-2026-56274

Flowise before 3.1.2 contains multiple OS command injection vulnerabilities in the Custom MCP Server feature due to incomplete command-flag validation and a regex bypass in local file access restrictions. An attacker with a Flowise account of any role, or API access with view/update permissions f...

GHSA-FX2H-PF6J-XCFF vite: `server.fs.deny` bypass on Windows alternate paths

Summary The contents of files that are specified by server.fs.deny can be returned to the browser on Windows. Impact Only apps that match the following conditions are affected: - explicitly exposes the Vite dev server to the network using --host or server.host config option - the sensitive file...

CVE-2026-11345: Improper Authentication

An Improper Authentication vulnerability in the /api/Cdn/GetFile endpoint of linqi allows unauthenticated, remote attackers to bypass file access controls. The ValidateAnonFileAccess function incorrectly grants access if an 'AnonFile' query parameter containing exactly 256 characters is provided...

Concrete CMS is vulnerable to IDOR in AddMessage/UpdateMessage

Concrete CMS 9.5.0 and below is vulnerable to IDOR in AddMessage/UpdateMessage via attachments parameter which can lead to file permission bypass. The AddMessage and UpdateMessage conversation controllers accept user-supplied file attachment IDs and load files directly via $em-findFile::class,...

CVE-2026-45671 Open WebUI: shared-chat branch ignores access_type, allowing unauthorized file deletion

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, any authenticated user can permanently delete files owned by other users via DELETE /api/v1/files/id when the target file is referenced in any shared chat. The hasaccesstofile...

ClearanceKit 安全漏洞

ClearanceKit is a macOS file system access control tool developed by Craig J. Bass. Versions of ClearanceKit prior to 4.2.4 contained security vulnerabilities; these vulnerabilities stemmed from the failure to intercept events of type ESEVENTTYPEAUTHEXCHANGEDATA and ESEVENTTYPEAUTHCLONE, which...

AWS API MCP File Access Restriction Bypass

Description The AWS API MCP Server is an open source Model Context Protocol MCP server that enables AI assistants to interact with AWS services and resources through AWS CLI commands. It provides programmatic access to manage your AWS infrastructure while maintaining proper security controls. Thi...

PYSEC-2026-162

Improper Protection of Alternate Path exists in the no-access and workdir feature of the AWS API MCP Server versions = 0.2.14 and 1.3.9 on all platforms may allow the bypass of intended file access restriction and expose arbitrary local file contents in the MCP client application context. To...

CVE-2026-4270 AWS API MCP File Access Restriction Bypass

Improper Protection of Alternate Path exists in the no-access and workdir feature of the AWS API MCP Server versions = 0.2.14 and 1.3.9 on all platforms may allow the bypass of intended file access restriction and expose arbitrary local file contents in the MCP client application context. To...