vulnerability / NVI-00013814 / Revision 1
DiceBear: SVG injection via the unescaped rotate option in @dicebear/core (and fontSize/fontWeight in @dicebear/initials)
GitHub lists this reviewed advisory for @dicebear/core, @dicebear/initials. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
4.7 medium
GitHub source severity; exploitability and local consequence require separate evidence.
As of · GitHub Advisory Database
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
@dicebear/core
source listed<= 9.4.2
## Summary `@dicebear/core` builds avatar SVGs from caller-supplied options. The numeric `rotate` option is interpolated into an SVG `transform` attribute without XML-escaping. It is typed as a number, but nothing checks the type at runtime, so a string value passes straight through and can break out of the attribute to inject arbitrary SVG markup. This is the same root cause as CVE-2026-33311 (GHSA-mr9r-mww3-v6gv), which escaped the string options `backgroundColor`, `fontFamily`, and `textColor` but did not cover `rotate`. `@dicebear/initials` has the same gap in its numeric `fontSize` and `fontWeight` options. ## Impact Cross-site scripting (CWE-79). When the generated avatar is rendered inline (for example via `innerHTML`) or served as `image/svg+xml` and opened directly, injected markup such as an `` handler runs script in the page's origin. Exploitation requires the application to pass untrusted input into one of these options: - `rotate` (`@dicebear/core`) - `fontSize`, `fontWeight` (`@dicebear/initials`) In most integrations these options are set by the developer and only `seed` is user-controlled, so the vulnerable configuration is uncommon. Applicatio
@dicebear/initials
source listed<= 9.4.2
## Summary `@dicebear/core` builds avatar SVGs from caller-supplied options. The numeric `rotate` option is interpolated into an SVG `transform` attribute without XML-escaping. It is typed as a number, but nothing checks the type at runtime, so a string value passes straight through and can break out of the attribute to inject arbitrary SVG markup. This is the same root cause as CVE-2026-33311 (GHSA-mr9r-mww3-v6gv), which escaped the string options `backgroundColor`, `fontFamily`, and `textColor` but did not cover `rotate`. `@dicebear/initials` has the same gap in its numeric `fontSize` and `fontWeight` options. ## Impact Cross-site scripting (CWE-79). When the generated avatar is rendered inline (for example via `innerHTML`) or served as `image/svg+xml` and opened directly, injected markup such as an `` handler runs script in the page's origin. Exploitation requires the application to pass untrusted input into one of these options: - `rotate` (`@dicebear/core`) - `fontSize`, `fontWeight` (`@dicebear/initials`) In most integrations these options are set by the developer and only `seed` is user-controlled, so the vulnerable configuration is uncommon. Applicatio
03 / Response
What to do next
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.
- GHSA-gcr2-9v8m-gq45 ↗
GitHub Advisory Database · vendor advisory
Observed . GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.
Public revision history
Only published revisions appear here. Routine fetches do not create a material-change event.
- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.