CVE-2026-27013

Fabric.js is a Javascript HTML5 canvas library. Prior to version 7.2.0, Fabric.js applies `escapeXml()` to text content during SVG export (`src/shapes/Text/TextSVGExportMixin.ts:186`) but fails to apply it to other user-controlled string values that are interpolated into SVG attribute markup. When attacker-controlled JSON is loaded via `loadFromJSON()` and later exported via `toSVG()`, the unescaped values break out of XML attributes and inject arbitrary SVG elements including event handlers. Any application that accepts user-supplied JSON (via `loadFromJSON()`, collaborative sharing, import features, CMS plugins) and renders the `toSVG()` output in a browser context (SVG preview, export download rendered in-page, email template, embed) is vulnerable to stored XSS. An attacker can execute arbitrary JavaScript in the victim's browser session. Version 7.2.0 contains a fix.

CVSS v3 7.6 HIGH

7.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/fabricjs/fabric.js/commit/7e1a122defd8feefe4eb7eaf0c180d7b0aeb6fee	Patch
https://github.com/fabricjs/fabric.js/releases/tag/v720	Product Release Notes
https://github.com/fabricjs/fabric.js/security/advisories/GHSA-hfvx-25r5-qc3w	Exploit Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:fabricjs:fabric.js:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-02-19 20:25

Updated : 2026-02-23 19:25

NVD link : CVE-2026-27013

Mitre link : CVE-2026-27013

CVE.ORG link : CVE-2026-27013

JSON object : View

Products Affected

fabricjs

fabric.js

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-116

Improper Encoding or Escaping of Output

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