GitHub Advisoryadvisory · npm

GHSA-mr9r-mww3-v6gv SVG Injection via Unsanitized Options in @dicebear/core and @dicebear/initials

MEDIUM Published 2026-03-19 Modified 2026-03-25 Official page ↗
Aliases
CVE-2026-33311
Ecosystem
npm
Packages
@dicebear/core, @dicebear/initials
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-79
Reviewed
2026-03-19

Affected packages

• npm @dicebear/core: >= 5.0.0, < 5.4.4 → fixed in 5.4.4 • npm @dicebear/core: >= 6.0.0, < 6.1.4 → fixed in 6.1.4 • npm @dicebear/core: >= 7.0.0, < 7.1.4 → fixed in 7.1.4 • npm @dicebear/core: >= 8.0.0, < 8.0.3 → fixed in 8.0.3 • npm @dicebear/core: >= 9.0.0, < 9.4.1 → fixed in 9.4.1 • npm @dicebear/initials: >= 5.0.0, < 5.4.4 → fixed in 5.4.4 • npm @dicebear/initials: >= 6.0.0, < 6.1.4 → fixed in 6.1.4 • npm @dicebear/initials: >= 7.0.0, < 7.1.4 → fixed in 7.1.4 • npm @dicebear/initials: >= 8.0.0, < 8.0.3 → fixed in 8.0.3 • npm @dicebear/initials: >= 9.0.0, < 9.4.1 → fixed in 9.4.1

Description

Summary SVG attribute values derived from user-supplied options (`backgroundColor`, `fontFamily`, `textColor`) were not XML-escaped before interpolation into SVG output. This could allow Cross-Site Scripting (XSS) when applications pass untrusted input to `createAvatar()` and serve the resulting SVG inline or with `Content-Type: image/svg+xml`. Affected packages • `@dicebear/core` — `backgroundColor` option values interpolated into SVG attributes without escaping (affects `solid` and `gradientLinear` background types) • `@dicebear/initials` — `fontFamily` and `textColor` option values interpolated into SVG attributes without escaping Fix All affected SVG attribute values are now properly escaped using XML entity encoding. Users should upgrade to the listed patched versions. Mitigating factors • Applications that validate input against the library's JSON Schema before passing it to `createAvatar()` are not affected • The DiceBear CLI validates input via AJV and was not vulnerable • Exploitation requires that an application passes untrusted, unvalidated external input directly as option values

Related

Alias · CVE (1)

  • CVE-2026-33311 DiceBear is an avatar library for designers and developers. vulnerability

Weakness · CWE (1)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References