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Fencer Intel
medium 6.1

CVE-2025-25054 json

Movable Type contains a reflected cross-site scripting vulnerability in the user information edit page.

published last yr. modified 4mo ago also EUVD-2025-4746

cvss
6.1
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 17%
public exploits
0
none known

Summary

Movable Type contains a reflected cross-site scripting vulnerability in the user information edit page. When Multi-Factor authentication plugin is enabled and a user accesses a crafted page while logged in to the affected product, an arbitrary script may be executed on the web browser of the user.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

  • 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)

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.