CVE-2025-55706

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.

Category

5.1
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.0 •
EPSS 0.03%
Affected: Six Apart Ltd. Movable Type (Software Edition)
Affected: Six Apart Ltd. Movable Type (Software Edition)
Affected: Six Apart Ltd. Movable Type Advanced (Software Edition)
Affected: Six Apart Ltd. Movable Type Advanced (Software Edition)
Affected: Six Apart Ltd. Movable Type Premium (Software Edition)
Affected: Six Apart Ltd. Movable Type Premium (Software Edition)
Affected: Six Apart Ltd. Movable Type Premium (Advanced Edition) (Software Edition)
Affected: Six Apart Ltd. Movable Type Premium (Advanced Edition) (Software Edition)
Affected: Six Apart Ltd. Movable Type (Cloud Edition)
Affected: Six Apart Ltd. Movable Type (Cloud Edition)
Affected: Six Apart Ltd. Movable Type Premium (Cloud Edition)
Affected: Six Apart Ltd. Movable Type Premium (Cloud Edition)
Published at:
Updated at:

References

Link Tags
https://movabletype.org/news/2025/08/mt-843-released.html
https://jvn.jp/en/jp/JVN76729865/

Frequently Asked Questions

What is the severity of CVE-2025-55706?
CVE-2025-55706 has been scored as a medium severity vulnerability.
How to fix CVE-2025-55706?
To fix CVE-2025-55706, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-55706 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-55706 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-55706?
CVE-2025-55706 affects Six Apart Ltd. Movable Type (Software Edition), Six Apart Ltd. Movable Type (Software Edition), Six Apart Ltd. Movable Type Advanced (Software Edition), Six Apart Ltd. Movable Type Advanced (Software Edition), Six Apart Ltd. Movable Type Premium (Software Edition), Six Apart Ltd. Movable Type Premium (Software Edition), Six Apart Ltd. Movable Type Premium (Advanced Edition) (Software Edition), Six Apart Ltd. Movable Type Premium (Advanced Edition) (Software Edition), Six Apart Ltd. Movable Type (Cloud Edition), Six Apart Ltd. Movable Type (Cloud Edition), Six Apart Ltd. Movable Type Premium (Cloud Edition), Six Apart Ltd. Movable Type Premium (Cloud Edition).
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