AIKIDO-2026-676071
svgo is vulnerable to Cross-Site Scripting (XSS)
61
Medium Risk
This Affects:
svgoTL;DR
The opt-in removeScripts plugin strips <script> elements but does not fully sanitize executable HTML inside SVG <foreignObject> containers. Event-handler attributes such as onload, srcdoc documents on embedded iframes, and executable URLs in attributes like href, src, and action survive optimization. When the optimized SVG is rendered in an active browser context, that executable content runs as cross-site script. The fix removes SVG event attributes and strips executable HTML URLs and embedded documents inside foreignObject.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you enable the opt-in removeScripts plugin (named removeScriptElement on the v1-v2 lines) to sanitize untrusted SVG input.
Background info
svgo is vulnerable to Cross-Site Scripting (XSS) in versions 1.0.0 - 2.8.3, 3.0.0 - 3.3.4 and 4.0.0 - 4.0.2.
How to fix this
Upgrade the svgo library to the patch version.
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SOC 2Compliant
ISO 27001Compliant