PYSEC-2020-62

Vulnerability from pysec - Published: 2020-12-03 17:15 - Updated: 2021-03-30 21:15
VLAI
Details

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.

Impacted products
Name purl
lxml pkg:pypi/lxml
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "lxml",
        "purl": "pkg:pypi/lxml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.2"
            },
            {
              "fixed": "4.6.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2",
        "1.2.1",
        "1.3beta",
        "1.3",
        "1.3.1",
        "1.3.2",
        "1.3.3",
        "1.3.4",
        "1.3.5",
        "1.3.6",
        "2.0alpha1",
        "2.0alpha2",
        "2.0alpha3",
        "2.0alpha4",
        "2.0alpha5",
        "2.0alpha6",
        "2.0beta1",
        "2.0beta2",
        "2.0",
        "2.0.1",
        "2.0.2",
        "2.0.3",
        "2.0.4",
        "2.0.5",
        "2.0.6",
        "2.0.7",
        "2.0.8",
        "2.0.9",
        "2.0.10",
        "2.0.11",
        "2.1alpha1",
        "2.1beta1",
        "2.1beta2",
        "2.1beta3",
        "2.1",
        "2.1.1",
        "2.1.2",
        "2.1.3",
        "2.1.4",
        "2.1.5",
        "2.2alpha1",
        "2.2beta1",
        "2.2beta2",
        "2.2beta3",
        "2.2beta4",
        "2.2",
        "2.2.1",
        "2.2.2",
        "2.2.3",
        "2.2.4",
        "2.2.5",
        "2.2.6",
        "2.2.7",
        "2.2.8",
        "2.3alpha1",
        "2.3alpha2",
        "2.3beta1",
        "2.3",
        "2.3.1",
        "2.3.2",
        "2.3.3",
        "2.3.4",
        "2.3.5",
        "2.3.6",
        "3.0",
        "3.0.1",
        "3.0.2",
        "3.1beta1",
        "3.1.0",
        "3.1.1",
        "3.1.2",
        "3.2.0",
        "3.2.1",
        "3.2.2",
        "3.2.3",
        "3.2.4",
        "3.2.5",
        "3.3.0beta1",
        "3.3.0beta2",
        "3.3.0beta3",
        "3.3.0beta4",
        "3.3.0beta5",
        "3.3.0",
        "3.3.1",
        "3.3.2",
        "3.3.3",
        "3.3.4",
        "3.3.5",
        "3.3.6",
        "3.4.0",
        "3.4.1",
        "3.4.2",
        "3.4.3",
        "3.4.4",
        "3.5.0b1",
        "3.5.0",
        "3.6.0",
        "3.6.1",
        "3.6.2",
        "3.6.3",
        "3.6.4",
        "3.7.0",
        "3.7.1",
        "3.7.2",
        "3.7.3",
        "3.8.0",
        "4.0.0",
        "4.1.0",
        "4.1.1",
        "4.2.0",
        "4.2.1",
        "4.2.2",
        "4.2.3",
        "4.2.4",
        "4.2.5",
        "4.2.6",
        "4.3.0",
        "4.3.1",
        "4.3.2",
        "4.3.3",
        "4.3.4",
        "4.3.5",
        "4.4.0",
        "4.4.1",
        "4.4.2",
        "4.4.3",
        "4.5.0",
        "4.5.1",
        "4.5.2",
        "4.6.0",
        "4.6.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-27783",
    "GHSA-pgww-xf46-h92r"
  ],
  "details": "A XSS vulnerability was discovered in python-lxml\u0027s clean module. The module\u0027s parser didn\u0027t properly imitate browsers, which caused different behaviors between the sanitizer and the user\u0027s page. A remote attacker could exploit this flaw to run arbitrary HTML/JS code.",
  "id": "PYSEC-2020-62",
  "modified": "2021-03-30T21:15:00Z",
  "published": "2020-12-03T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1901633"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.debian.org/security/2020/dsa-4810"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00028.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JKG67GPGTV23KADT4D4GK4RMHSO4CIQL/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TMHVKRUT22LVWNL3TB7HPSDHJT74Q3JK/"
    },
    {
      "type": "ADVISORY",
      "url": "https://advisory.checkmarx.net/advisory/CX-2020-4286"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-pgww-xf46-h92r"
    }
  ]
}



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