← CVE Intelligence

CVE-2026-21393

Six Apart Ltd. / Movable Type (Software Edition) PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Six Apart Ltd. / Movable Type (Software Edition)affected 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)
Six Apart Ltd. / Movable Type Advanced (Software Edition)affected 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)
Six Apart Ltd. / Movable Type Premium (Software Edition)affected 9.0.4 (MTP 9.0 series); affected 2.13 and earlier (MTP 2 series)
Six Apart Ltd. / Movable Type Premium (Advanced Edition) (Software Edition)affected 9.0.4 (MTP 9.0 series); affected 2.13 and earlier (MTP 2 series)
Six Apart Ltd. / Movable Type (Cloud Edition)affected 9.0.5 (9 series); affected 8.8.1 (8 series)
Six Apart Ltd. / Movable Type Premium (Cloud Edition)affected 9.0.5 (9 series); affected 2.12 (MTP 2 series)

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.