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npm package

external-svg-loader

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. Critical, CVSS 9.8npmAmendedPublished

    external-svg-loader Cross-site Scripting vulnerability

    CVE-2023-40013 · GHSA-xc2r-jf2x-gjr8

    Affected
    • npm external-svg-loader < 1.6.9
    Fixed in
    1.6.9· Vendor fix available
    Issue
    According to the docs, svg-loader will strip all JS code before injecting the SVG file for security reasons but the input sanitization logic is not sufficient and can be trivially bypassed. This allows an attacker to craft a malicious SVG which can result in XSS. Details When trying to sanitize the svg the lib removes event attributes such as onmouseover, onclick but the list of events is not exhaustive. Here's a list of events not removed by svg-loader. onafterscriptexecute, onbeforecopy, onbeforecut, onbeforescriptexecute, onbeforetoggle, onbegin, onbounce, onend, onfinish, onfocusin, onfocusout, onmousewheel, onpointerrawupdate, onrepeat, onsearch, onshow, onstart, ontoggle(popover), ontouchend, ontouchmove, ontouchstart As you can see in the POC we can use onbegin in animate tag to execute JS code without needing to add data-js="enabled". PoC Impact Any website which uses external-svg-loader and allows its users to provide svg src, upload svg files would be susceptible to…

    Recommended action: Upgrade to 1.6.9 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →