All errata/sisyphus/ALT-PU-2021-5028-1
ALT-PU-2021-5028-1

Package update python-module-lxml in branch sisyphus

Version4.6.3.0.16.git5ecb40bc-alt1
Task#276591
Published2021-07-01
Max severityMEDIUM
Severity:

Closed issues (6)

BDU:2021-03119
MEDIUM6.1

Уязвимость класса Cleaner библиотеки для обработки разметки XML и HTML Lxml, позволяющая нарушителю выполнить произвольный Java Script-код

Published: 2021-06-18Modified: 2025-11-26
CVSS 3.xMEDIUM 6.1
CVSS:3.x/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0MEDIUM 5.8
CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:N
References
BDU:2021-03620
MEDIUM6.1

Уязвимость модуля clean библиотеки для обработки разметки XML и HTML Lxml, связанная с непринятием мер по защите структуры веб-страницы, позволяющая нарушителю оказать воздействие на целостность защищаемой информации

Published: 2021-07-15Modified: 2025-11-26
CVSS 3.xMEDIUM 6.1
CVSS:3.x/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0MEDIUM 5.8
CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:N
References
CVE-2020-27783
MEDIUM6.1

A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote attacker could exploit this flaw to run arbitrary HTML/JS code.

Published: 2020-12-03Modified: 2025-12-17
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS 3.xMEDIUM 6.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
References
CVE-2021-28957
MEDIUM6.1

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.

Published: 2021-03-21Modified: 2025-12-17
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS 3.xMEDIUM 6.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
References
GHSA-jq4v-f5q6-mjqq
MEDIUM5.3

lxml vulnerable to Cross-Site Scripting

Published: 2021-03-22Modified: 2024-09-30
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 4.0MEDIUM 5.3
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
References
GHSA-pgww-xf46-h92r
MEDIUM5.3

lxml vulnerable to Cross-site Scripting

Published: 2021-01-08Modified: 2025-12-20
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 4.0MEDIUM 5.3
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
References