CVE-2025-52478

描述

### Impact A stored **Cross-Site Scripting (XSS)** vulnerability was identified in [n8n](https://github.com/n8n-io/n8n), specifically in the **Form Trigger** node's **HTML form element**. An authenticated attacker can inject malicious HTML via an `<iframe>` with a `srcdoc` payload that includes arbitrary JavaScript execution. The attacker can also inject malicious Javascript by using `<video>` coupled `<source>` using an `onerror` event. While using `iframe` or a combination of `video` and `source` tag, this vulnerability allows for Account Takeover (ATO) by exfiltrating `n8n-browserId` and session cookies from authenticated users who visit a maliciously crafted form. Using these tokens and cookies, an attacker can impersonate the victim and change account details such as email addresses, enabling full control over the account—especially if 2FA is not enabled. ### Patches The issue was addressed in [PR #16329](https://github.com/n8n-io/n8n/pull/16329). Users should upgrade to version >=1.98.2. ### Workarounds Apart from updating to the fixed version, n8n instance administrators can: - Configure a reverse proxy to **serve webhook requests from a different domain** [[docs](https://docs.n8n.io/hosting/configuration/configuration-examples/webhook-url/)]. - Disable or restrict use of the **Form Trigger node**, particularly the **HTML** element type. - Use a Content Security Policy (CSP) to block execution of inline scripts and disallow use of `srcdoc`. ### References - [OWASP XSS Prevention Cheat Sheet](https://cheatsheetseries.owasp.org/cheatsheets/XSS_Prevention_Cheat_Sheet.html) - [MDN: iframe `srcdoc` attribute](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#attr-srcdoc) - [HTML: `onerror` attribute](https://html.spec.whatwg.org/multipage/webappapis.html#handler-onerror)

如何修補 CVE-2025-52478

要修補 CVE-2025-52478,請將受影響套件升級到下列已修補版本。

• —升級至 1.98.2 或更新版本

CVE-2025-52478 正在被利用嗎?

低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。

受影響套件(1)