Cross-site scripting (XSS) in teddy
Priority LOW 29CWE-843Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
This affects the package teddy before 0.5.9. A type confusion vulnerability can be used to bypass input sanitization when the model content is an array (instead of a string).
Why it matters now
EPSS 0.01128 66th percentileScored 2026-11-07
Fix Fixed teddy: 0.5.9teddy (npm): 0.5.9
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | teddy | before 0.5.9 | 0.5.9 | Patch available | CNA |
| — | teddy (npm) | before 0.5.9 | 0.5.9 | Patch available | GHSA-5f38-9jw2-6r6h |
- teddy Vendor— Affected before 0.5.9 Fixed in 0.5.9 Patch available CNA
- teddy (npm) Vendor— Affected before 0.5.9 Fixed in 0.5.9 Patch available GHSA-5f38-9jw2-6r6h
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:teddy_project:teddy:*:*:*:*:*:node.js:*:* | before 0.5.9 | Vulnerable | Teddy Project |
- cpe:2.3:a:teddy_project:teddy:*:*:*:*:*:node.js:*:* Versions before 0.5.9 Vulnerable ·Teddy Project
Remediation
- Fix · CNA teddy Fixed in 0.5.9
- Fix · GHSA-5f38-9jw2-6r6h teddy (npm) Fixed in 0.5.9 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-23447
- 2026-10-03 Alias added: GHSA-5f38-9jw2-6r6h
References
Advisory 2
Sources
- CVE-2021-23447 · CVE Program
- CVE-2021-23447 · NVD
- FIRST EPSS
- GHSA-5f38-9jw2-6r6h · GitHub Advisory Database · CC BY 4.0
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