Description
In MediaWiki before 1.31.15, 1.32.x through 1.35.x before 1.35.3, and 1.36.x before 1.36.1, bots have certain unintended API access. When a bot account has a "sitewide block" applied, it is able to still "purge" pages through the MediaWiki Action API (which a "sitewide block" should have prevented).
Solution(s)
mediawiki-upgrade-1_31_15mediawiki-upgrade-1_35_3mediawiki-upgrade-1_36_1
Referenceshttps://attackerkb.com/topics/cve-2021-35197CVE - 2021-35197https://lists.wikimedia.org/hyperkitty/list/[email protected]/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/https://phabricator.wikimedia.org/T280226
