HTML Injection in marky-markdown
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This package is no longer maintained.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
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | marky-markdown | >= 0.0.0 | no fix |
References
- Weakness (CWE)
CWE-79- Platform
- npm
- Package
marky-markdown- Disclosed
- 03.09.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-pxmp-fwjc-4x7q - CC BY 4.0
Vulnerability history: marky-markdown
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 09.2020 09.2020
- Without a fix
- 2
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 1
Disclosures per year
- 2020: 2
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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HTML Injection in marky-markdown this entry
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