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CVE-2024-34078 (GCVE-0-2024-34078)

Vulnerability from cvelistv5 – Published: 2024-05-06 14:48 – Updated: 2024-08-26 18:03
VLAI
Title
html-sanitizer allows arbitrary HTML present after sanitization because of unicode normalization
Summary
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.
Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-06 20:39 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version CPE status
matthiask html-sanitizer Affected: < 2.4.2
guessed Create a notification for this product.
Show details on NVD website
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