Vulnerability details

CVE-2026-73650

svg svgo

SVGO: removeScripts plugin leaves some executable scripts intact

CVSS 3.1

8.2High

Official description

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.

CVSS scores

Score	Version	Source	Vector
8.2High	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N`

Affected products

Vendor	Product	Versions	Source
svg	svgo	>= 1.0.0, < 2.8.3	CVEProject cvelistV5 (CNA)
svg	svgo	>= 3.0.0, < 3.3.4	CVEProject cvelistV5 (CNA)
svg	svgo	>= 4.0.0, < 4.0.2	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/svg/svgo/security/advisories/GHSA-2p49-hgcm-8545 x_refsource_CONFIRM
https://github.com/svg/svgo/commit/628e3bc7336625a30365d0a9b60185307d852466 x_refsource_MISC
https://github.com/svg/svgo/commit/72a23886b4698b27624b936f3a15a80afd36d75f x_refsource_MISC
https://github.com/svg/svgo/commit/f529cfccc6c154d6f6eabe276ec637a8c5db6763 x_refsource_MISC
https://github.com/svg/svgo/releases/tag/v2.8.3 x_refsource_MISC
https://github.com/svg/svgo/releases/tag/v3.3.4 x_refsource_MISC
https://github.com/svg/svgo/releases/tag/v4.0.2 x_refsource_MISC

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Details

Published: 2026-08-13
Last updated: 2026-08-18
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.43%

Probability of exploitation in 30 days

37.9%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: Proof of concept
Technical impact: Partial

Weaknesses (CWE)

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-184
Incomplete List of Disallowed Inputs