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An issue was discovered in WikibaseLexeme in MediaWiki before 1.39.6, 1.40.x before 1.40.2, and 1.41.x before 1.41.1. Loading Special:MergeLexemes will (attempt to) make an edit that merges the from-id to the to-id, even if the request was not a POST request, and even if it does not contain an edit token.
Reserved 2024-05-05 | Published 2024-05-05 | Updated 2024-08-21 | Assigner mitrephabricator.wikimedia.org/T357101
gerrit.wikimedia.org/.../extensions/WikibaseLexeme/+/1013359
lists.fedoraproject.org/...FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/ (FEDORA-2024-2c564b942d)
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