{"id":"BIT-mediawiki-2020-35623","details":"An issue was discovered in the CasAuth extension for MediaWiki through 1.35.1. Due to improper username validation, it allowed user impersonation with trivial manipulations of certain characters within a given username. An ordinary user may be able to login as a \"bureaucrat user\" who has a similar username, as demonstrated by usernames that differ only in (1) bidirectional override symbols or (2) blank space.","aliases":["CVE-2020-35623"],"modified":"2025-04-03T14:40:37.652Z","published":"2024-03-06T11:13:14.694Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*"]},"references":[{"type":"WEB","url":"https://github.com/CWRUChielLab/CASAuth/pull/11"},{"type":"WEB","url":"https://phabricator.wikimedia.org/T263498"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-35623"}],"affected":[{"package":{"name":"mediawiki","ecosystem":"Bitnami","purl":"pkg:bitnami/mediawiki"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.35.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/mediawiki/BIT-mediawiki-2020-35623.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}],"schema_version":"1.7.3"}