{"id":"CVE-2020-35478","details":"MediaWiki before 1.35.1 allows XSS via BlockLogFormatter.php. MediaWiki:blanknamespace potentially can be output as raw HTML with SCRIPT tags via LogFormatter::makePageLink(). This affects MediaWiki 1.33.0 and later.","aliases":["BIT-mediawiki-2020-35478"],"modified":"2026-07-08T05:54:01.808452099Z","published":"2020-12-18T08:15:15.293Z","database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"33"},{"last_affected":"33"}],"source":"CPE_STRING","vendor_product":"fedoraproject:fedora"}]},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/"},{"type":"ADVISORY","url":"https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html"},{"type":"EVIDENCE","url":"https://phabricator.wikimedia.org/T268938"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wikimedia/mediawiki","events":[{"introduced":"a1742c4f4b2c331a44ba1d80bf1431ddfb9ef678"},{"fixed":"3e26b5ff1468f98cf306575d125b29a6645bf2ea"}],"database_specific":{"extracted_events":[{"introduced":"1.33.0"},{"fixed":"1.35.1"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35478.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"}]}