CVE-2025-46343
n8n Vulnerable to Stored XSS through Attachments View Endpoint
描述
### Impact n8n workflows can store and serve binary files, which are accessible to authenticated users. However, there was no restriction on the MIME type of uploaded files, and the MIME type could be controlled via a GET parameter. This allowed 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, for example, send a request to change the user’s email address in their account settings, effectively enabling account takeover. ### Patches - [n8n@1.90.0](https://github.com/n8n-io/n8n/releases/tag/n8n%401.90.0) ### Credit We would like to thank @Mahmoud0x00 for reporting this issue.
如何修補 CVE-2025-46343
要修補 CVE-2025-46343,請將受影響套件升級到下列已修補版本。
- —升級至 1.90.0 或更新版本
CVE-2025-46343 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 1.90.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N |