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01 Record

CVE-2026-24447

If a malformed data is input to the affected product, a CSV file downloaded from the affected product may contain such malformed data. When a victim user download and open such a CSV file, the

MediumPUBLISHEDCNA: jpcert
CNA base score4.8 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L

02 Description

If a malformed data is input to the affected product, a CSV file downloaded from the affected product may contain such malformed data. When a victim user download and open such a CSV file, the

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
0.25% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 16.1% of scored records. A rank, not a probability.
NVD base score
4.8 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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
2026-02-04 07:04Z8 MO AGO
Last updated
2026-02-04 15:55Z8 MO AGO
Reserved
2026-01-29
Assigning CNA
jpcert
Record state
PUBLISHED
Severity
Medium (CVSS 4.8)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L
Weaknesses
  • CWE-1236Improper Neutralization of Formula Elements in a CSV FileBase
Data version
5.2
Document digest
ca1a4b03508e86c353a6b90cc6127a87c60957da96f060bc4dd8fd89d2c682cc

05 Affected products

VendorProductVersionsPlatforms
Six Apart Ltd.Movable Type (Software Edition)9.0.4 to 9.0.5 (9.0 series), 8.8.0 to 8.8.1 (8.8 series), 8.0.2 to 8.0.8 (8.0 series)—
Six Apart Ltd.Movable Type Advanced (Software Edition)9.0.4 to 9.0.5 (9.0 series), 8.8.0 to 8.8.1 (8.8 series), 8.0.2 to 8.0.8 (8.0 series)—
Six Apart Ltd.Movable Type Premium (Software Edition)9.0.4 (MTP 9.0 series), 2.13 and earlier (MTP 2 series)—
Six Apart Ltd.Movable Type Premium (Advanced Edition) (Software Edition)9.0.4 (MTP 9.0 series), 2.13 and earlier (MTP 2 series)—
Six Apart Ltd.Movable Type (Cloud Edition)9.0.5 (9 series), 8.8.1 (8 series)—
Six Apart Ltd.Movable Type Premium (Cloud Edition)9.0.5 (9 series), 2.12 (MTP 2 series)—

06 References