pysec-2018-12
Vulnerability from pysec
Published
2018-12-02 10:29
Modified
2021-06-16 00:03
Details

An issue was discovered in lxml before 4.2.5. lxml/html/clean.py in the lxml.html.clean module does not remove javascript: URLs that use escaping, allowing a remote attacker to conduct XSS attacks, as demonstrated by "j a v a s c r i p t:" in Internet Explorer. This is a similar issue to CVE-2014-3146.

Impacted products
Name purl
lxml pkg:pypi/lxml
Aliases


To clipboard 

{
   affected: [
      {
         package: {
            ecosystem: "PyPI",
            name: "lxml",
            purl: "pkg:pypi/lxml",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "0",
                  },
                  {
                     fixed: "6be1d081b49c97cfd7b3fbd934a193b668629109",
                  },
               ],
               repo: "https://github.com/lxml/lxml",
               type: "GIT",
            },
            {
               events: [
                  {
                     introduced: "0",
                  },
                  {
                     fixed: "4.2.5",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
         versions: [
            "0.9",
            "0.9.1",
            "0.9.2",
            "1.0",
            "1.0.1",
            "1.0.2",
            "1.0.3",
            "1.0.4",
            "1.0.beta",
            "1.1",
            "1.1.1",
            "1.1.2",
            "1.1alpha",
            "1.1beta",
            "1.2",
            "1.2.1",
            "1.3",
            "1.3.1",
            "1.3.2",
            "1.3.3",
            "1.3.4",
            "1.3.5",
            "1.3.6",
            "1.3beta",
            "2.0",
            "2.0.1",
            "2.0.10",
            "2.0.11",
            "2.0.2",
            "2.0.3",
            "2.0.4",
            "2.0.5",
            "2.0.6",
            "2.0.7",
            "2.0.8",
            "2.0.9",
            "2.0alpha1",
            "2.0alpha2",
            "2.0alpha3",
            "2.0alpha4",
            "2.0alpha5",
            "2.0alpha6",
            "2.0beta1",
            "2.0beta2",
            "2.1",
            "2.1.1",
            "2.1.2",
            "2.1.3",
            "2.1.4",
            "2.1.5",
            "2.1alpha1",
            "2.1beta1",
            "2.1beta2",
            "2.1beta3",
            "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",
            "2.2alpha1",
            "2.2beta1",
            "2.2beta2",
            "2.2beta3",
            "2.2beta4",
            "2.3",
            "2.3.1",
            "2.3.2",
            "2.3.3",
            "2.3.4",
            "2.3.5",
            "2.3.6",
            "2.3alpha1",
            "2.3alpha2",
            "2.3beta1",
            "3.0",
            "3.0.1",
            "3.0.2",
            "3.1.0",
            "3.1.1",
            "3.1.2",
            "3.1beta1",
            "3.2.0",
            "3.2.1",
            "3.2.2",
            "3.2.3",
            "3.2.4",
            "3.2.5",
            "3.3.0",
            "3.3.0beta1",
            "3.3.0beta2",
            "3.3.0beta3",
            "3.3.0beta4",
            "3.3.0beta5",
            "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",
            "3.5.0",
            "3.5.0b1",
            "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",
         ],
      },
   ],
   aliases: [
      "CVE-2018-19787",
      "GHSA-xp26-p53h-6h2p",
   ],
   details: "An issue was discovered in lxml before 4.2.5. lxml/html/clean.py in the lxml.html.clean module does not remove javascript: URLs that use escaping, allowing a remote attacker to conduct XSS attacks, as demonstrated by \"j a v a s c r i p t:\" in Internet Explorer. This is a similar issue to CVE-2014-3146.",
   id: "PYSEC-2018-12",
   modified: "2021-06-16T00:03:23.627691Z",
   published: "2018-12-02T10:29:00Z",
   references: [
      {
         type: "FIX",
         url: "https://github.com/lxml/lxml/commit/6be1d081b49c97cfd7b3fbd934a193b668629109",
      },
      {
         type: "WEB",
         url: "https://lists.debian.org/debian-lts-announce/2018/12/msg00001.html",
      },
      {
         type: "WEB",
         url: "https://usn.ubuntu.com/3841-2/",
      },
      {
         type: "WEB",
         url: "https://usn.ubuntu.com/3841-1/",
      },
      {
         type: "WEB",
         url: "https://lists.debian.org/debian-lts-announce/2020/11/msg00044.html",
      },
      {
         type: "ADVISORY",
         url: "https://github.com/advisories/GHSA-xp26-p53h-6h2p",
      },
   ],
}


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