SVGO: removeScripts plugin leaves some executable scripts intact
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| svg | svgo | 1.0.0 to before 2.8.3; 3.0.0 to before 3.3.4; 4.0.0 to before 4.0.2 | 2.8.3, 3.3.4, 4.0.2 | Patch available | CNA |
| — | svgo (npm) | 1.0.0 to before 2.8.3 | 2.8.3 | Patch available | GHSA-2p49-hgcm-8545 |
| — | svgo (npm) | 3.0.0 to before 3.3.4 | 3.3.4 | Patch available | GHSA-2p49-hgcm-8545 |
| — | svgo (npm) | 4.0.0 to before 4.0.2 | 4.0.2 | Patch available | GHSA-2p49-hgcm-8545 |
- svgo Vendorsvg Affected 1.0.0 to before 2.8.3; 3.0.0 to before 3.3.4; 4.0.0 to before 4.0.2 Fixed in 2.8.3, 3.3.4, 4.0.2 Patch available CNA
- svgo (npm) Vendor— Affected 1.0.0 to before 2.8.3 Fixed in 2.8.3 Patch available GHSA-2p49-hgcm-8545
- svgo (npm) Vendor— Affected 3.0.0 to before 3.3.4 Fixed in 3.3.4 Patch available GHSA-2p49-hgcm-8545
- svgo (npm) Vendor— Affected 4.0.0 to before 4.0.2 Fixed in 4.0.2 Patch available GHSA-2p49-hgcm-8545
Remediation
- Fix · CNA svgo (svg) Fixed in 2.8.3, 3.3.4, 4.0.2
- Fix · GHSA-2p49-hgcm-8545 svgo (npm) Fixed in 2.8.3 Advisory →
- Fix · GHSA-2p49-hgcm-8545 svgo (npm) Fixed in 3.3.4 Advisory →
- Fix · GHSA-2p49-hgcm-8545 svgo (npm) Fixed in 4.0.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-73650
- 2026-10-03 Alias added: GHSA-2p49-hgcm-8545
References
Other 8
- https://github.com/svg/svgo/security/advisories/GHSA-2p49-hgcm-8545
- https://github.com/svg/svgo/commit/628e3bc7336625a30365d0a9b60185307d852466
- https://github.com/svg/svgo/commit/72a23886b4698b27624b936f3a15a80afd36d75f
- https://github.com/svg/svgo/commit/f529cfccc6c154d6f6eabe276ec637a8c5db6763
- https://github.com/svg/svgo/releases/tag/v2.8.3
- https://github.com/svg/svgo/releases/tag/v3.3.4
- https://github.com/svg/svgo/releases/tag/v4.0.2
- https://github.com/svg/svgo
More svg vulnerabilities
- TI-2026-57981 SVGO: removeScripts allows executable links through namespace and control-character bypasses CVSS 3.1HIGH 8.2
- TI-2026-57980 SVGO: removeScripts incompletely sanitizes executable HTML in SVG foreignObject elements CVSS 3.1MEDIUM 6.1
Sources
- CVE-2026-73650 · CVE Program
- CVE-2026-73650 · NVD
- FIRST EPSS
- GHSA-2p49-hgcm-8545 · GitHub Advisory Database · CC BY 4.0
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