An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute allowing for JS to bypass the sanitizer. A remote attacker could exploit this flaw to run arbitrary JS code on users who interact with incorrectly sanitized HTML. This issue is patched in lxml 4.6.3.
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No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| lxml | lxml | 4.6.3 | - |
| debian | debian_linux | - | - |
| debian | debian_linux | - |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
7
Affected Products
20
References
lxml / lxml
| - |
| fedoraproject | fedora | - | - |
| fedoraproject | fedora | - | - |
| netapp | snapcenter | - | - |
| oracle | zfs_storage_appliance_kit | - | - |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Exploitability
Impact