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CVE-2024-34078

html-sanitizer allows arbitrary HTML present after sanitization because of unicode normalization PUBLISHED

Description (CNA)

html-sanitizer is an allowlist-based HTML cleaner. If using `keep_typographic_whitespace=False` (which is the default), the sanitizer normalizes unicode to the NFKC form at the end. Some unicode characters normalize to chevrons; this allows specially crafted HTML to escape sanitization. The problem has been fixed in 2.4.2.

Affected (CNA)

Vendor / productVersions
matthiask / html-sanitizeraffected < 2.4.2

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.