A code injection vulnerability exists in the upgrade script of Movable Type, which may allow an unauthenticated attacker to execute an arbitrary Perl script or an SQL query on the affected product.
https://www.sixapart.jp/movabletype/news/2026/10/07-1100.html
https://movabletype.org/news/2026/10/mt-930-released.html
Published: 2026-10-07
Updated: 2026-10-07
Base Score: 9.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:P
Severity: High
Base Score: 9.4
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Severity: Critical
Base Score: 9.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Severity: Critical
EPSS: 0.00643