GHSA-V9V9-XFFQ-RWR4

Vulnerability from github – Published: 2022-05-17 02:57 – Updated: 2024-09-20 21:25
VLAI?
Summary
Improper Neutralization of Input During Web Page Generation in html5lib
Details

The serializer in html5lib before 0.99999999 might allow remote attackers to conduct cross-site scripting (XSS) attacks by leveraging mishandling of the < (less than) character in attribute values.

Severity ?
6.1 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "html5lib"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.999999999"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2016-9909"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-07-06T19:51:12Z",
    "nvd_published_at": "2017-02-22T16:59:00Z",
    "severity": "MODERATE"
  },
  "details": "The serializer in html5lib before 0.99999999 might allow remote attackers to conduct cross-site scripting (XSS) attacks by leveraging mishandling of the \u003c (less than) character in attribute values.",
  "id": "GHSA-v9v9-xffq-rwr4",
  "modified": "2024-09-20T21:25:38Z",
  "published": "2022-05-17T02:57:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9909"
    },
    {
      "type": "WEB",
      "url": "https://github.com/html5lib/html5lib-python/issues/11"
    },
    {
      "type": "WEB",
      "url": "https://github.com/html5lib/html5lib-python/issues/12"
    },
    {
      "type": "WEB",
      "url": "https://github.com/html5lib/html5lib-python/commit/9b8d8eb5afbc066b7fac9390f5ec75e5e8a7cab7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-v9v9-xffq-rwr4"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/html5lib/html5lib-python"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/html5lib/PYSEC-2017-14.yaml"
    },
    {
      "type": "WEB",
      "url": "https://html5lib.readthedocs.io/en/latest/changes.html#b9"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20161229134056/http://www.securityfocus.com/bid/95132"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2016/12/06/5"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2016/12/08/8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Improper Neutralization of Input During Web Page Generation in html5lib"
}


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