Medium severity · published Aug 20, 2025
CVE-2025-55706
URL redirection to untrusted site ('Open Redirect') issue exists in Movable Type
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
URL redirection to untrusted site ('Open Redirect') issue exists in Movable Type. If this vulnerability is exploited, an invalid parameter may be inserted into the password reset page, which may lead to redirection to an arbitrary URL.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MT
Movable Type (Cloud Edition) · Six Apart Ltd.
8.6.0 (8 series); 7 r.5508 (7 series) · source: vendor
MT
Movable Type (Software Edition) · Six Apart Ltd.
8.0.0 to 8.0.6; 8.4.0 to 8.4.2 (8 series); 7 r.5508 and earlier (7 series) · source: vendor
MT
Movable Type Advanced (Software Edition) · Six Apart Ltd.
8.0.0 to 8.0.6; 8.4.0 to 8.4.2 (8 series); 7 r.5508 and earlier (7 series) · source: vendor
MT
Movable Type Premium (Cloud Edition) · Six Apart Ltd.
2.09 (2 series); 1.66 (1 series) · source: vendor
MT
Movable Type Premium (Advanced Edition) (Software Edition) · Six Apart Ltd.
2.09 and earlier (2 series); 1.66 and earlier (1 series) · source: vendor
MT
Movable Type Premium (Software Edition) · Six Apart Ltd.
2.09 and earlier (2 series); 1.66 and earlier (1 series) · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55706
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-55706
jvn.jp
https://jvn.jp/en/jp/JVN76729865/
movabletype.org
https://movabletype.org/news/2025/08/mt-843-released.html
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