CVE-2025-22888

MEDIUM

5.4

CVSS Score

Published: February 19, 2025 at 05:52 AM UTC

Updated: June 17, 2026 at 08:50 AM UTC

4 products affected across 1 vendorMovable TypeMovable Type PremiumMovable Type Premium Advanced

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Severity

MEDIUM5.4

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Movable Type · Sixapart

60%

v ≤ 8.0.5v ≤ 8.4.1

Movable Type Advanced · Sixapart

60%

v ≤ 8.0.5v ≤ 8.4.1

Movable Type Premium · Sixapart

60%

v ≤ 2.06

Movable Type Premium Advanced · Sixapart

60%

v ≤ 2.06

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: [email protected]

https://jvn.jp/en/jp/JVN48742353/

Source: [email protected]

https://www.movabletype.org/news/2025/02/mt-842-released.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMjpcert

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-79

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