Stored cross-site scripting in Six Apart Ltd products - CVE-2026-22875
Published: February 4, 2026
Vulnerability identifier: #VU122292
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-22875
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in Export Sites. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Affected software
Movable Type Premium
Movable Type Premium (Advanced Edition)
Movable Type Premium Cloud Edition
Movable Type
Movable Type Advanced
Movable Type Cloud Edition
Movable Type Premium (Advanced Edition)
Movable Type Premium Cloud Edition
Movable Type
Movable Type Advanced
Movable Type Cloud Edition
How to mitigate CVE-2026-22875
Install updates from vendor's website.
Movable Type Premium - addressed in versions 2.14, 9.1.0
Movable Type Premium (Advanced Edition) - addressed in versions 2.14, 9.1.0
Movable Type Premium Cloud Edition - addressed in versions 2.14, 9.1.0
Movable Type - addressed in versions 8.0.9, 8.8.2, 9.0.6
Movable Type Advanced - addressed in versions 8.0.9, 8.8.2, 9.0.6
Movable Type Cloud Edition - addressed in versions 8.8.2, 9.1.0
Movable Type Premium (Advanced Edition) - addressed in versions 2.14, 9.1.0
Movable Type Premium Cloud Edition - addressed in versions 2.14, 9.1.0
Movable Type - addressed in versions 8.0.9, 8.8.2, 9.0.6
Movable Type Advanced - addressed in versions 8.0.9, 8.8.2, 9.0.6
Movable Type Cloud Edition - addressed in versions 8.8.2, 9.1.0