ghsa-7f42-p84j-f58p
Vulnerability from github
Published
2018-03-21 11:56
Modified
2023-01-23 20:47
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
Sanitize vulnerable to Improper Input Validation and Cross-site Scripting
Details

When Sanitize <= 4.6.2 is used in combination with libxml2 >= 2.9.2, a specially crafted HTML fragment can cause libxml2 to generate improperly escaped output, allowing non-whitelisted attributes to be used on whitelisted elements.

This can allow HTML and JavaScript injection, which could result in XSS if Sanitize's output is served to browsers.

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To clipboard 

{
   affected: [
      {
         package: {
            ecosystem: "RubyGems",
            name: "sanitize",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "3.0.0",
                  },
                  {
                     fixed: "4.6.3",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
   ],
   aliases: [
      "CVE-2018-3740",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-20",
         "CWE-79",
      ],
      github_reviewed: true,
      github_reviewed_at: "2020-06-16T21:22:33Z",
      nvd_published_at: "2018-03-30T19:29:00Z",
      severity: "HIGH",
   },
   details: "When Sanitize <= 4.6.2 is used in combination with libxml2 >= 2.9.2, a specially crafted HTML fragment can cause libxml2 to generate improperly escaped output, allowing non-whitelisted attributes to be used on whitelisted elements.\n\nThis can allow HTML and JavaScript injection, which could result in XSS if Sanitize's output is served to browsers.",
   id: "GHSA-7f42-p84j-f58p",
   modified: "2023-01-23T20:47:11Z",
   published: "2018-03-21T11:56:32Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2018-3740",
      },
      {
         type: "WEB",
         url: "https://github.com/rgrove/sanitize/issues/176",
      },
      {
         type: "WEB",
         url: "https://github.com/rgrove/sanitize/commit/01629a162e448a83d901456d0ba8b65f3b03d46e",
      },
      {
         type: "WEB",
         url: "https://github.com/rgrove/sanitize/commit/93feeb38e21864146bb29191792b971dbe1ec62e",
      },
      {
         type: "WEB",
         url: "https://about.gitlab.com/2018/06/25/security-release-gitlab-11-dot-0-dot-1-released",
      },
      {
         type: "PACKAGE",
         url: "https://github.com/rgrove/sanitize",
      },
      {
         type: "WEB",
         url: "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/sanitize/CVE-2018-3740.yml",
      },
      {
         type: "WEB",
         url: "https://www.debian.org/security/2018/dsa-4358",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
         type: "CVSS_V3",
      },
   ],
   summary: "Sanitize vulnerable to Improper Input Validation and Cross-site Scripting",
}


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