{"id":"CVE-2020-11888","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":["GHSA-fv3h-8x5j-pvgq","PYSEC-2020-65"],"modified":"2026-04-10T04:18:36.779003Z","published":"2020-04-20T16:15:14.430Z","related":["openSUSE-SU-2020:0651-1","openSUSE-SU-2020:0656-1"],"references":[{"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"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XOAIRJJCZNJUALXDHSIGH5PS2H63A3J/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AQLRBGRVRRZK7P5SFL2MNGXFX37YHJAV/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PN6QSHRFZXRQAYZJQ4MOW5MKIXBYOMED/"},{"type":"EVIDENCE","url":"https://github.com/trentm/python-markdown2/issues/348"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/trentm/python-markdown2","events":[{"introduced":"0"},{"last_affected":"44dde555d9cecbcfa16a3d07f17415719777e5c9"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"2.3.8"}]}}],"versions":["1.0.1.18","1.0.1.19","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":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11888.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}