GHSA-c8hm-hr8h-5xjw · 深刻度: medium · エコシステム: npm — n8n Vulnerable to Stored XSS through Attachments View Endpoint
n8n is a workflow automation platform. Prior to version 1.90.0, n8n is vulnerable to stored cross-site scripting (XSS) through the attachments view endpoint. n8n workflows can store and serve binary files, which are accessible to authenticated users. However, there is no restriction on the MIME type of uploaded files, and the MIME type could be controlled via a GET parameter. This allows the server to respond with any MIME type, potentially enabling malicious content to be interpreted and executed by the browser. An authenticated attacker with member-level permissions could exploit this by uploading a crafted HTML file containing malicious JavaScript. When another user visits the binary data endpoint with the MIME type set to text/html, the script executes in the context of the user’s session. This script could send a request to change the user’s email address in their account settings, effectively enabling account takeover. This issue has been patched in version 1.90.0.
総合評価: CVE-2025-46343 は低リスク(23.8/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.21%、11 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.26% | 0.21% | -0.05% |
| 2 | 2026-06-07 | 0.60% | 0.26% | -0.34% |
| 3 | 2026-06-06 | — | 0.60% | — |
EPSS の全履歴 (全 7 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 5.0 | 3.1 | MEDIUM |
|
0.8 | 4.2 | [email protected] |
| 5.4 | 3.1 | MEDIUM |
|
2.3 | 2.7 | [email protected] |
GHSA-c8hm-hr8h-5xjw · 深刻度: medium · エコシステム: npm — n8n Vulnerable to Stored XSS through Attachments View Endpoint
| URL | タグ |
|---|---|
| https://github.com/n8n-io/n8n/pull/14350 | Issue Tracking Patch |
| https://github.com/n8n-io/n8n/pull/14685 | Issue Tracking Patch |
| https://github.com/n8n-io/n8n/releases/tag/n8n%401.90.0 | Release Notes |
| https://github.com/n8n-io/n8n/security/advisories/GHSA-c8hm-hr8h-5xjw | Patch Vendor Advisory |