{"id":"GHSA-fv3h-8x5j-pvgq","summary":"XSS in python-markdown2","details":"python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \\w+ match succeeds. For example, an attack might use elementname@ or elementname- with an onclick attribute.","aliases":["CVE-2020-11888","PYSEC-2020-65"],"modified":"2024-09-24T20:33:18.866718Z","published":"2020-04-22T20:59:50Z","database_specific":{"github_reviewed":true,"cwe_ids":["CWE-79"],"severity":"MODERATE","nvd_published_at":null,"github_reviewed_at":"2020-04-22T19:19:38Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11888"},{"type":"WEB","url":"https://github.com/trentm/python-markdown2/issues/348"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/markdown2/PYSEC-2020-65.yaml"},{"type":"PACKAGE","url":"https://github.com/trentm/python-markdown2"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6XOAIRJJCZNJUALXDHSIGH5PS2H63A3J"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AQLRBGRVRRZK7P5SFL2MNGXFX37YHJAV"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PN6QSHRFZXRQAYZJQ4MOW5MKIXBYOMED"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00031.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00035.html"}],"affected":[{"package":{"name":"markdown2","ecosystem":"PyPI","purl":"pkg:pypi/markdown2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.9"}]}],"versions":["1.0.1.10","1.0.1.11","1.0.1.12","1.0.1.13","1.0.1.14","1.0.1.15","1.0.1.16","1.0.1.17","1.0.1.18","1.0.1.19","1.0.1.6","1.0.1.7","1.0.1.8","1.0.1.9","1.1.0","1.1.1","1.2.0","1.3.0","1.3.1","1.4.0","1.4.1","1.4.2","2.0.0","2.0.1","2.1.0","2.2.0","2.2.1","2.2.2","2.2.3","2.3.0","2.3.1","2.3.2","2.3.3","2.3.4","2.3.5","2.3.6","2.3.7","2.3.8"],"database_specific":{"last_known_affected_version_range":"\u003c= 2.3.8","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/04/GHSA-fv3h-8x5j-pvgq/GHSA-fv3h-8x5j-pvgq.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/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:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"}]}