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lib/MT/Upgrade.pm in mt-upgrade.cgi in Movable Type 4.2x and 4.3x through 4.38 does not require authentication for requests to database-migration functions, which allows remote attackers to conduct eval injection and SQL injection attacks via crafted parameters, as demonstrated by an eval injection attack against the core_drop_meta_for_table function, leading to execution of arbitrary Perl code.
Use CWE-287, Sixapart vendor hub and Movable Type product page to widen CVE-2013-0209 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2022-38078, CVE-2021-20837 and CVE-2026-25776 for nearby disclosures in the same product family.