CVE-2025-22888

Description

Movable Type contains a stored cross-site scripting vulnerability in the custom block edit page of MT Block Editor. If exploited, an arbitrary script may be executed on a logged-in user's web browser.

Category

5.4
CVSS
Severity: Medium
CVSS 3.0 •
EPSS 0.04%
Affected: Six Apart Ltd. Movable Type (8.4.x series)
Affected: Six Apart Ltd. Movable Type (8.0.x series)
Affected: Six Apart Ltd. Movable Type Advanced (8.4.x series)
Affected: Six Apart Ltd. Movable Type Advanced (8.0.x series)
Affected: Six Apart Ltd. Movable Type Premium (2.x series)
Affected: Six Apart Ltd. Movable Type Premium (Advanced Edition) (2.x series)
Affected: Six Apart Ltd. Movable Type Cloud Edition (8.x series)
Affected: Six Apart Ltd. Movable Type Premium Cloud Edition (2.x series)
Published at:
Updated at:

References

Link Tags
https://www.movabletype.org/news/2025/02/mt-842-released.html
https://jvn.jp/en/jp/JVN48742353/

Frequently Asked Questions

What is the severity of CVE-2025-22888?
CVE-2025-22888 has been scored as a medium severity vulnerability.
How to fix CVE-2025-22888?
To fix CVE-2025-22888, 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-2025-22888 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-22888 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-2025-22888?
CVE-2025-22888 affects Six Apart Ltd. Movable Type (8.4.x series), Six Apart Ltd. Movable Type (8.0.x series), Six Apart Ltd. Movable Type Advanced (8.4.x series), Six Apart Ltd. Movable Type Advanced (8.0.x series), Six Apart Ltd. Movable Type Premium (2.x series), Six Apart Ltd. Movable Type Premium (Advanced Edition) (2.x series), Six Apart Ltd. Movable Type Cloud Edition (8.x series), Six Apart Ltd. Movable Type Premium Cloud Edition (2.x series).
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