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01 Record

CVE-2025-24841

Movable Type contains a stored cross-site scripting vulnerability in the HTML edit mode of MT Block Editor. It is exploitable when TinyMCE6 is used as a rich text editor and an arbitrary script may be

MediumPUBLISHEDCNA: jpcert
CNA base score5.4 CVSS v3.xCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

02 Description

Movable Type contains a stored cross-site scripting vulnerability in the HTML edit mode of MT Block Editor. It is exploitable when TinyMCE6 is used as a rich text editor and an arbitrary script may be

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.22% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 13.0% of scored records. A rank, not a probability.
NVD base score
5.4 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Deferred. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-02-19 05:52Z1 YR AGO
Last updated
2025-02-19 14:52Z1 YR AGO
Reserved
2025-02-03
Assigning CNA
jpcert
Record state
PUBLISHED
Severity
Medium (CVSS 5.4)
CNA CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weaknesses
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
Data version
5.1
Document digest
7e205bded89bcbbd8c63f9c4dc93cd140294ea475a8d24d9caefb817bcf431fd

05 Affected products

VendorProductVersionsPlatforms
Six Apart Ltd.Movable Type (8.4.x series)8.4.1 and earlier—
Six Apart Ltd.Movable Type (8.0.x series)8.0.5 and earlier—
Six Apart Ltd.Movable Type Advanced (8.4.x series)8.4.1 and earlier—
Six Apart Ltd.Movable Type Advanced (8.0.x series)8.0.5 and earlier—
Six Apart Ltd.Movable Type Premium (2.x series)2.06 and earlier—
Six Apart Ltd.Movable Type Cloud Edition (8.x series)8.4.1 and earlier—
Six Apart Ltd.Movable Type Premium Cloud Edition (2.x series)2.06 and earlier—

06 References