Improper Neutralization of Formula Elements in a CSV File in Six Apart Ltd products - CVE-2026-24447
Published: February 4, 2026
Vulnerability identifier: #VU122296
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-24447
CWE-ID: CWE-1236
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Six Apart Ltd
Affected software:
Movable Type
Movable Type Advanced
Movable Type Premium
Movable Type Premium (Advanced Edition)
Movable Type Cloud Edition
Movable Type Premium Cloud Edition
Movable Type
Movable Type Advanced
Movable Type Premium
Movable Type Premium (Advanced Edition)
Movable Type Cloud Edition
Movable Type Premium Cloud Edition
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper neutralization of formula elements in a CSV file. A remote user can trick a victim to open a specially crafted CSV file and execute arbitrary code on the system.
How to mitigate CVE-2026-24447
Install updates from vendor's website.