HTML Injection in marky-markdown
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- —
- Fix status
- No fix listed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-79.
Summary
All versions of `marky-markdown` are vulnerable to HTML Injection due to a validation bypass. The package only allows iframes where the source is `youtube.com` but it is possible to bypass the validation with sources where `youtube.com` is the sub-domain, such as `youtube.com.evil.co`. This ## Recommendation This package is no longer maintained. Please upgrade to `@npmcorp/marky-markdown`
Why it matters now
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 |
|---|---|---|---|---|---|
| — | marky-markdown (npm) | 0.0.0 and later | — | No fix listed | GHSA-pxmp-fwjc-4x7q |
- marky-markdown (npm) Vendor— Affected 0.0.0 and later Fixed in — No fix listed GHSA-pxmp-fwjc-4x7q
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-03 Threatist record created from GHSA-pxmp-fwjc-4x7q
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences