Mageia 7: 2021-0038 Moderate: Python-lxml XSS Exploit Mitigation
mageia
January 17, 2021
A XSS vulnerability was discovered in python-lxml's clean module
Summary
A XSS vulnerability was discovered in python-lxml's clean module. The module's
parser didn't properly imitate browsers, which caused different behaviorsbetween the sanitizer and the user's page. A remote attacker could exploit
this flaw to run arbitrary HTML/JS code. (CVE-2020-27783).
References
- https://bugs.mageia.org/show_bug.cgi?id=27685
- https://lists.debian.org/debian-lts-announce/2020/11/msg00044.html
- https://ubuntu.com/security/notices/USN-4666-1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/JKG67GPGTV23KADT4D4GK4RMHSO4CIQL/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/TMHVKRUT22LVWNL3TB7HPSDHJT74Q3JK/
- https://www.cve.org/CVERecord?id=CVE-2020-27783
Resolution
SRPMS
- 7/core/python-lxml-4.3.0-1.2.mga7
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Publication date: 17 Jan 2021
URL: https://advisories.mageia.org/MGASA-2021-0038.html
Type: security
CVE: CVE-2020-27783
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