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.

Show details on source website

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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