Wednesday, July 14, 2021

MediaWiki: Exposure of Resource to Wrong Sphere (CVE-2021-35197)

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).
  • mediawiki-upgrade-1_31_15
  • mediawiki-upgrade-1_35_3
  • mediawiki-upgrade-1_36_1

  • References
  • CVE - 2021-35197
  •[email protected]/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/


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    Thanks for everything Templateism - You should have written the code a little more complicated