5.1

CVSS Score

4.0

-

CVSS Score

Basic Information

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CVE-2025-14284

CVE-2025-14284: @tiptap/extension-link vulnerable to Cross-site Scripting (XSS)

Versions of the package @tiptap/extension-link before 2.10.4 are vulnerable to Cross-site Scripting (XSS) due to unsanitized user input allowed in setting or toggling links. An attacker can execute arbitrary JavaScript code in the context of the application by injecting a javascript: URL payload into these attributes, which is then triggered either by user interaction.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2025-14284

CVE-2025-14284:

5.1

CVSS Score

4.0

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
@tiptap/extension-link	npm	< 2.10.4	2.10.4

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability is a Cross-site Scripting (XSS) issue in the @tiptap/extension-link package. It stems from the lack of input sanitization in the setLink and toggleLink commands. These functions are responsible for creating and modifying links in the tiptap editor. Before the patch, they would accept any string as the href attribute for a link, including malicious javascript: payloads. When a user clicks on a link created with such a payload, the embedded JavaScript code executes in the browser, leading to XSS. The patch, identified in commit 1c2fefe3d61ab1c8fbaa6d6b597251e1b6d9aaed, rectifies this by introducing a validation step. It adds checks within both setLink and toggleLink that use a new isAllowedUri helper function. This function ensures that the URL protocol is one of the allowed types (e.g., 'http', 'https', 'mailto'), effectively blocking javascript: URLs and mitigating the vulnerability.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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