{"id":"CVE-2021-42045","details":"An issue was discovered in SecurePoll in the Growth extension in MediaWiki through 1.36.2. Simple polls allow users to create alerts by changing their User-Agent HTTP header and submitting a vote.","aliases":["BIT-mediawiki-2021-42045"],"modified":"2026-04-12T02:01:44.195981Z","published":"2022-09-29T03:15:14.533Z","references":[{"type":"ADVISORY","url":"https://phabricator.wikimedia.org/T289385"},{"type":"FIX","url":"https://gerrit.wikimedia.org/r/q/I4f04083cd00884d3b85245460774c81c7639a578"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wikimedia/mediawiki","events":[{"introduced":"0"},{"last_affected":"f65f9d6971578b301ef9fc915a729e6a13266a5e"}],"database_specific":{"cpe":"cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"1.36.2"}]}}],"versions":["1.1.0","1.3.0beta1","1.36.0","1.36.0-rc.0","1.36.1","1.36.2","1.5.0alpha1","1.5.0alpha2","1.5.0beta1","1.5.0beta2","1.5.0beta3","1.5.0beta4","1.6.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-42045.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}