HOMEVULNERABILITIESCVE-2026-27013
HIGHWEAPONIZED

CVE-2026-27013

CWE-79Published: February 19, 2026· Updated: Feb 23, 2026

7.6
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:11.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-27013 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.6.

A weaponized exploit for CVE-2026-27013 is publicly known. This significantly lowers the barrier for threat actors and increases the urgency for remediation.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L

Affected Vendors & Products

fabricjs1 product
fabric.js
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

WEAPONIZEDWeaponized exploit publicly available
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (3)

Quick Facts

CVE IDCVE-2026-27013
CVSS Score7.6 / 10
SeverityHIGH
WeaknessCWE-79
CISA KEVNo
ExploitWEAPONIZED
EPSS (30d)0.04%
Affected1 vendor
PublishedFeb 19, 2026

Related CVEs (CWE-79)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-27013 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.