Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE-2026-44311
Summary
Fabric.js is a Javascript HTML5 canvas library. Prior to version 7.4.0, a potential Cross-Site Scripting (XSS) vulnerability exists in Fabric.js due to improper escaping of user-controlled input during SVG serialization via the `toSVG()` method. Specifically, the color field within the `colorStops` array of a `fabric.Gradient` object is not properly escaped when converted into SVG `<stop>` elements. If an application renders the generated SVG string into the DOM, this may allow an attacker to inject arbitrary HTML/SVG and execute JavaScript in the victim's browser. This vulnerability is fixed in 7.4.0.
- LOW
- NETWORK
- LOW
- CHANGED
- REQUIRED
- NONE
- LOW
- NONE
CWE-79 - Cross Site Scripting
Cross-Site Scripting, commonly referred to as XSS, is the most dominant class of vulnerabilities. It allows an attacker to inject malicious code into a pregnable web application and victimize its users. The exploitation of such a weakness can cause severe issues such as account takeover, and sensitive data exfiltration. Because of the prevalence of XSS vulnerabilities and their high rate of exploitation, it has remained in the OWASP top 10 vulnerabilities for years.
References
Advisory Timeline
- Published
