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Fencer Intel
medium —

GHSA-pxmp-fwjc-4x7q json

HTML Injection in marky-markdown

published 6y ago modified 5y ago

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
—
no score, EPSS covers CVEs only
public exploits
0
none known

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This package is no longer maintained.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`

Is GHSA-pxmp-fwjc-4x7q in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Affected packages

ecosystem package affected fixed in
npm marky-markdown
>=0.0.0
 no fix listed

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.