CVE-2022-45122: Sixapart Movable Type

Medium severity, CVSS 6.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Cross-site scripting vulnerability in Movable Type Movable Type 7 r.5301 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.5301 and earlier (Movable Type Advanced 7 Series), Movable Type 6.8.7 and earlier (Movable Type 6 Series), Movable Type Advanced 6.8.7 and earlier (Movable Type Advanced 6 Series), Movable Type Premium 1.53 and earlier, and Movable Type Premium Advanced 1.53 and earlier allows a remote unauthenticated attacker to inject an arbitrary script.

Affected products

• Sixapart Movable Type: up to and including 1.53; from 6.0, before 6.8.7 (fixed in 6.8.7); from 7.0, before 7.9.6 (fixed in 7.9.6)

Published 2022-12-07. Last modified 2026-06-17.