ghsa-9prh-257w-9277
Vulnerability from github
Published
2018-10-23 17:20
Modified
2021-09-08 20:16
Severity ?
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
Cross-Site Scripting in handlebars
Details

Versions of handlebars prior to 4.0.0 are affected by a cross-site scripting vulnerability when attributes in handlebar templates are not quoted.

Proof of Concept

Template: <a href={{foo}}/>

Input: { 'foo' : 'test.com onload=alert(1)'}

Rendered result: <a href=test.com onload=alert(1)/>

Recommendation

Update to version 4.0.0 or later. Alternatively, ensure that all attributes in handlebars templates are encapsulated with quotes.

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "handlebars"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2015-8861"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:29:14Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "Versions of `handlebars` prior to 4.0.0 are affected by a cross-site scripting vulnerability when attributes in handlebar templates are not quoted.\n\n\n## Proof of Concept\nTemplate:\n```\u003ca href={{foo}}/\u003e```\n\nInput:\n```{ \u0027foo\u0027 : \u0027test.com onload=alert(1)\u0027}```\n\nRendered result:\n```\u003ca href=test.com onload=alert(1)/\u003e```\n\n\n## Recommendation\n\nUpdate to version 4.0.0 or later.\nAlternatively, ensure that all attributes in handlebars templates are encapsulated with quotes.",
  "id": "GHSA-9prh-257w-9277",
  "modified": "2021-09-08T20:16:46Z",
  "published": "2018-10-23T17:20:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-8861"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wycats/handlebars.js/pull/1083"
    },
    {
      "type": "WEB",
      "url": "https://blog.srcclr.com/handlebars_vulnerability_research_findings"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-9prh-257w-9277"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/wycats/handlebars.js"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/61"
    },
    {
      "type": "WEB",
      "url": "https://www.sourceclear.com/blog/handlebars_vulnerability_research_findings"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/security/tns-2016-18"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2016/04/20/11"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/96434"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cross-Site Scripting in handlebars"
}


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