SVGO, short for SVG Optimizer, is a Node.js library and command-line application for optimizing SVG files. From version 1.0.0 until versions 2.8.3, 3.3.4, and 4.0.2, the removeScripts plugin, named removeScriptElement in versions 1 through 3, can leave executable content in optimized SVGs because it does not remove namespaced or prefixed script elements such as <svg:script> and, in versions 3 and 4, matches JavaScript URIs case sensitively. Applications that process untrusted SVG input with this plugin enabled and serve the result can allow scripts to execute when another user opens the SVG, exposing local storage or cookies.
This issue is fixed in versions 2.8.3, 3.3.4, and 4.0.2.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 7
https://github.com/svg/svgo/commit/628e3bc7336625a30365d0a9b60185307d852466
security-advisories@github.com
https://github.com/svg/svgo/commit/72a23886b4698b27624b936f3a15a80afd36d75f
security-advisories@github.com
https://github.com/svg/svgo/commit/f529cfccc6c154d6f6eabe276ec637a8c5db6763
security-advisories@github.com
https://github.com/svg/svgo/releases/tag/v2.8.3
security-advisories@github.com
https://github.com/svg/svgo/releases/tag/v3.3.4
security-advisories@github.com
https://github.com/svg/svgo/releases/tag/v4.0.2
security-advisories@github.com
https://github.com/svg/svgo/security/advisories/GHSA-2p49-hgcm-8545
security-advisories@github.com