{"id":"CVE-2025-53490","details":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - CampaignEvents Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - CampaignEvents Extension: from 1.43.X before 1.43.2.","modified":"2026-07-09T19:48:16.733845Z","published":"2025-07-03T16:15:23.823Z","references":[{"type":"FIX","url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CampaignEvents/+/1165949"},{"type":"FIX","url":"https://phabricator.wikimedia.org/T395622"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wikimedia/mediawiki","events":[{"introduced":"8216997ffcc956a610635f07044fb9a3b5dda9d9"},{"fixed":"0af28b77ee97ff26c62ce647bb12963adde19d22"}],"database_specific":{"extracted_events":[{"introduced":"1.43.X"},{"fixed":"1.43.2"}],"source":"DESCRIPTION"}}],"versions":["1.43.1","1.43.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-53490.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"}]}