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Test ID:1.3.6.1.4.1.25623.1.1.2.2021.2517
Category:Huawei EulerOS Local Security Checks
Title:Huawei EulerOS: Security Advisory for python-lxml (EulerOS-SA-2021-2517)
Summary:The remote host is missing an update for the Huawei EulerOS 'python-lxml' package(s) announced via the EulerOS-SA-2021-2517 advisory.
Description:Summary:
The remote host is missing an update for the Huawei EulerOS 'python-lxml' package(s) announced via the EulerOS-SA-2021-2517 advisory.

Vulnerability Insight:
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.(CVE-2021-28957)

Affected Software/OS:
'python-lxml' package(s) on Huawei EulerOS V2.0SP5.

Solution:
Please install the updated package(s).

CVSS Score:
4.3

CVSS Vector:
AV:N/AC:M/Au:N/C:N/I:P/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2021-28957
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