{"id":"CVE-2018-13796","aliases":["PYSEC-2026-661"],"url":"https://o3.security/vulnerability/CVE-2018-13796","summary":"Moderate severity vulnerability that affects mailman","details":"An issue was discovered in GNU Mailman before 2.1.28. A crafted URL can cause arbitrary text to be displayed on a web page from a trusted site.","published":"2018-09-11T18:57:16Z","modified":"2026-07-06T08:11:10.333777576Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"mailman","fixedVersion":"2.1.28"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-13796"},{"type":"WEB","url":"https://bugs.launchpad.net/mailman/+bug/1780874"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-xqvg-xm9m-p2c4"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00034.html"},{"type":"WEB","url":"https://security.gentoo.org/glsa/201904-10"},{"type":"WEB","url":"https://usn.ubuntu.com/4348-1"},{"type":"WEB","url":"https://www.mail-archive.com/mailman-users@python.org/msg71003.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-06T08:11:10.333777576Z"}}