EUVD-2026-63657
GHSA-gcr2-9v8m-gq45
Severity by source
AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from Vendor (github) · only source for this CVE.
CVSS VectorVendor: github
Lifecycle Timeline
3DescriptionCVE.org
DiceBear is an avatar library for designers and developers. Prior to 9.4.3, @dicebear/core interpolates the rotate option into an SVG transform attribute without XML escaping in addRotate in packages/@dicebear/core/src/utils/svg.ts, while @dicebear/initials similarly emits fontSize and fontWeight without escaping in packages/@dicebear/initials/src/index.ts. Runtime callers can pass strings despite the numeric TypeScript types, break out of the attributes, and inject arbitrary SVG markup. Script can execute in the page origin when the generated avatar is inserted inline or served as image/svg+xml and opened directly, although exploitation requires an application to pass untrusted values into these normally developer-controlled options. This issue is fixed in @dicebear/core and @dicebear/initials version 9.4.3.
AnalysisAI
SVG attribute injection in @dicebear/core and @dicebear/initials prior to 9.4.3 enables cross-site scripting when an application routes untrusted input through the rotate, fontSize, or fontWeight avatar options. TypeScript types these parameters as numbers, but JavaScript runtime coercion allows string values, permitting attribute breakout and injection of arbitrary SVG markup — payloads confirmed in the commit test suite include onerror-carrying <image> elements. …
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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