The Chartkick gem through 3.3.2 for Ruby allows Cascading Style Sheets (CSS) Injection (without attribute).
Priority LOW 29CWE-74Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
The Chartkick gem through 3.3.2 for Ruby allows Cascading Style Sheets (CSS) Injection (without attribute).
Why it matters now
EPSS 0.00758 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed chartkick (RubyGems): 3.4.0
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | chartkick (RubyGems) | before 3.4.0 | 3.4.0 | Patch available | GHSA-3j95-fjv2-3m4p |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- chartkick (RubyGems) Vendor— Affected before 3.4.0 Fixed in 3.4.0 Patch available GHSA-3j95-fjv2-3m4p
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:chartkick_project:chartkick:*:*:*:*:*:ruby:*:* | up to 3.3.2 | Vulnerable | Chartkick Project |
- cpe:2.3:a:chartkick_project:chartkick:*:*:*:*:*:ruby:*:* Versions up to 3.3.2 Vulnerable ·Chartkick Project
Remediation
- Fix · GHSA-3j95-fjv2-3m4p chartkick (RubyGems) Fixed in 3.4.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-16254
- 2026-10-03 Alias added: GHSA-3j95-fjv2-3m4p
References
More Chartkick Project Chartkick vulnerabilities
- TI-2019-09523 The Chartkick gem through 3.1.0 for Ruby allows XSS. CVSS 3.0MEDIUM 4.7
Sources
- CVE-2020-16254 · CVE Program
- CVE-2020-16254 · NVD
- FIRST EPSS
- GHSA-3j95-fjv2-3m4p · GitHub Advisory Database · CC BY 4.0
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