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CVE-2026-27013

Fabricjs Fabric.js cross-site scripting (XSS)

7.6 HIGHPublic exploitEPSS 0.39%
  1. Published19 Feb 2026

Description

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L

Affected products

Fabricjs Fabric.js< 7.2.0

Remediation

Fixed in
Fabricjs Fabric.js≥ 7.2.0

References

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Frequently asked

Is CVE-2026-27013 being actively exploited?

CVE-2026-27013 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.39%.

How severe is CVE-2026-27013?

CVE-2026-27013 has a CVSS 3.1 base score of 7.6, rated high. EPSS estimates a 0.39% probability of exploitation.

Which products are affected by CVE-2026-27013?

Affected products include Fabricjs Fabric.js.

How do I fix CVE-2026-27013?

Upgrade affected software to a fixed version, for example Fabricjs Fabric.js 7.2.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-27013 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.