Skip to content
CVE PROGRAM SOURCE RECORD4.8 Medium

CVE-2026-21393

Movable Type contains a stored cross-site scripting vulnerability in Edit Comment. If crafted input is stored by an attacker, arbitrary script may be executed on a logged-in user's

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
jpcert

Description

Movable Type contains a stored cross-site scripting vulnerability in Edit Comment. If crafted input is stored by an attacker, arbitrary script may be executed on a logged-in user's web browser. Note that Movable Type 7 series and 8.4 series, which are End-of-Life (EOL), are affected by the vulnerability as well.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Six Apart Ltd. Movable Type (Software Edition)

  • 9.0.4 to 9.0.5 (9.0 series)affected
  • 8.8.0 to 8.8.1 (8.8 series)affected
  • 8.0.2 to 8.0.8 (8.0 series)affected

Six Apart Ltd. Movable Type Advanced (Software Edition)

  • 9.0.4 to 9.0.5 (9.0 series)affected
  • 8.8.0 to 8.8.1 (8.8 series)affected
  • 8.0.2 to 8.0.8 (8.0 series)affected

Six Apart Ltd. Movable Type Premium (Software Edition)

  • 9.0.4 (MTP 9.0 series)affected
  • 2.13 and earlier (MTP 2 series)affected

Six Apart Ltd. Movable Type Premium (Advanced Edition) (Software Edition)

  • 9.0.4 (MTP 9.0 series)affected
  • 2.13 and earlier (MTP 2 series)affected

Six Apart Ltd. Movable Type (Cloud Edition)

  • 9.0.5 (9 series)affected
  • 8.8.1 (8 series)affected

Six Apart Ltd. Movable Type Premium (Cloud Edition)

  • 9.0.5 (9 series)affected
  • 2.12 (MTP 2 series)affected

References