{
"id": "GHSA-p6h9-gw49-rqm4",
"aliases": [
"CVE-2018-5773"
],
"details": "An issue was discovered in `markdown2` (aka python-markdown2) through 2.3.5. The `safe_mode` feature, which is supposed to sanitize user input against XSS, is flawed and does not escape the input properly. With a crafted payload, XSS can be triggered, as demonstrated by omitting the final `>` character from an IMG tag.",
"summary": "markdown2 is vulnerable to cross-site scripting",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.3.6"
}
]
}
],
"package": {
"name": "markdown2",
"ecosystem": "PyPI"
}
}
],
"modified": "2024-09-30T17:00:47Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
},
{
"type": "CVSS_V4",
"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"
}
],
"published": "2018-07-12T20:29:21Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5773",
"type": "ADVISORY"
},
{
"url": "https://github.com/google/osv/issues/430",
"type": "WEB"
},
{
"url": "https://github.com/trentm/python-markdown2/issues/285",
"type": "WEB"
},
{
"url": "https://github.com/trentm/python-markdown2/pull/303",
"type": "WEB"
},
{
"url": "https://github.com/trentm/python-markdown2/commit/1b1dcdd727c0ef03453b9f5ef5ae3679f1d72323",
"type": "WEB"
},
{
"url": "https://github.com/advisories/GHSA-p6h9-gw49-rqm4",
"type": "ADVISORY"
},
{
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/markdown2/PYSEC-2018-13.yaml",
"type": "WEB"
},
{
"url": "https://github.com/trentm/python-markdown2",
"type": "PACKAGE"
},
{
"url": "https://github.com/trentm/python-markdown2/blob/master/CHANGES.md#python-markdown2-236",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-79"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": null,
"github_reviewed_at": "2020-06-16T21:48:21Z"
}
}