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CVE-2024-34078

MEDIUM

6.1

Description

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.

CVE Details

CVSS v3.1 Score6.1

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published5/6/2024

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-79

References

https://github.com/matthiask/html-sanitizer/commit/48db42fc5143d0140c32d929c46b802f96913550(security-advisories@github.com)

https://github.com/matthiask/html-sanitizer/security/advisories/GHSA-wvhx-q427-fgh3(security-advisories@github.com)

https://github.com/matthiask/html-sanitizer/commit/48db42fc5143d0140c32d929c46b802f96913550(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/matthiask/html-sanitizer/security/advisories/GHSA-wvhx-q427-fgh3(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2024/08/msg00000.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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