{"id":"CVE-2026-24447","state":"PUBLISHED","title":"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 C","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 embedded code may be executed in the user's environment. Note that Movable Type 7 series and 8.4 series, which are End-of-Life (EOL), are affected by the vulnerability as well.","publishedAt":"2026-02-04T07:04:04.422Z","updatedAt":"2026-02-04T15:55:26.690Z","severity":{"score":4.8,"label":"Medium","version":"4.0","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","source":"jpcert"},"assigner":"jpcert","products":["Six Apart Ltd. Movable Type (Software Edition)","Six Apart Ltd. Movable Type Advanced (Software Edition)","Six Apart Ltd. Movable Type Premium (Software Edition)","Six Apart Ltd. Movable Type Premium (Advanced Edition) (Software Edition)","Six Apart Ltd. Movable Type (Cloud Edition)","Six Apart Ltd. Movable Type Premium (Cloud Edition)"],"affected":[{"vendor":"Six Apart Ltd.","product":"Movable Type (Software Edition)","versions":[{"version":"9.0.4 to 9.0.5 (9.0 series)","status":"affected"},{"version":"8.8.0 to 8.8.1 (8.8 series)","status":"affected"},{"version":"8.0.2 to 8.0.8 (8.0 series)","status":"affected"}]},{"vendor":"Six Apart Ltd.","product":"Movable Type Advanced (Software Edition)","versions":[{"version":"9.0.4 to 9.0.5 (9.0 series)","status":"affected"},{"version":"8.8.0 to 8.8.1 (8.8 series)","status":"affected"},{"version":"8.0.2 to 8.0.8 (8.0 series)","status":"affected"}]},{"vendor":"Six Apart Ltd.","product":"Movable Type Premium (Software Edition)","versions":[{"version":"9.0.4 (MTP 9.0 series)","status":"affected"},{"version":"2.13 and earlier (MTP 2 series)","status":"affected"}]},{"vendor":"Six Apart Ltd.","product":"Movable Type Premium (Advanced Edition) (Software Edition)","versions":[{"version":"9.0.4 (MTP 9.0 series)","status":"affected"},{"version":"2.13 and earlier (MTP 2 series)","status":"affected"}]},{"vendor":"Six Apart Ltd.","product":"Movable Type (Cloud Edition)","versions":[{"version":"9.0.5 (9 series)","status":"affected"},{"version":"8.8.1 (8 series)","status":"affected"}]},{"vendor":"Six Apart Ltd.","product":"Movable Type Premium (Cloud Edition)","versions":[{"version":"9.0.5 (9 series)","status":"affected"},{"version":"2.12 (MTP 2 series)","status":"affected"}]}],"references":["https://movabletype.org/news/2026/02/mt-906-released.html","https://www.sixapart.jp/movabletype/news/2026/02/04-1100.html","https://jvn.jp/en/jp/JVN45405689/"],"weaknesses":["CWE-1236"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/24xxx/CVE-2026-24447.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-24447","state":"PUBLISHED","datePublished":"2026-02-04T07:04:04.422Z","dateUpdated":"2026-02-04T15:55:26.690Z","assignerShortName":"jpcert","assignerOrgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateReserved":"2026-01-29T02:02:27.800Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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 embedded code may be executed in the user's environment. Note that Movable Type 7 series and 8.4 series, which are End-of-Life (EOL), are affected by the vulnerability as well."}],"affected":[{"vendor":"Six Apart Ltd.","product":"Movable Type (Software Edition)","versions":[{"version":"9.0.4 to 9.0.5 (9.0 series)","status":"affected"},{"version":"8.8.0 to 8.8.1 (8.8 series)","status":"affected"},{"version":"8.0.2 to 8.0.8 (8.0 series)","status":"affected"}]},{"vendor":"Six Apart Ltd.","product":"Movable Type Advanced (Software Edition)","versions":[{"version":"9.0.4 to 9.0.5 (9.0 series)","status":"affected"},{"version":"8.8.0 to 8.8.1 (8.8 series)","status":"affected"},{"version":"8.0.2 to 8.0.8 (8.0 series)","status":"affected"}]},{"vendor":"Six Apart Ltd.","product":"Movable Type Premium (Software Edition)","versions":[{"version":"9.0.4 (MTP 9.0 series)","status":"affected"},{"version":"2.13 and earlier (MTP 2 series)","status":"affected"}]},{"vendor":"Six Apart Ltd.","product":"Movable Type Premium (Advanced Edition) (Software Edition)","versions":[{"version":"9.0.4 (MTP 9.0 series)","status":"affected"},{"version":"2.13 and earlier (MTP 2 series)","status":"affected"}]},{"vendor":"Six Apart Ltd.","product":"Movable Type (Cloud Edition)","versions":[{"version":"9.0.5 (9 series)","status":"affected"},{"version":"8.8.1 (8 series)","status":"affected"}]},{"vendor":"Six Apart Ltd.","product":"Movable Type Premium (Cloud Edition)","versions":[{"version":"9.0.5 (9 series)","status":"affected"},{"version":"2.12 (MTP 2 series)","status":"affected"}]}],"references":[{"url":"https://movabletype.org/news/2026/02/mt-906-released.html"},{"url":"https://www.sixapart.jp/movabletype/news/2026/02/04-1100.html"},{"url":"https://jvn.jp/en/jp/JVN45405689/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_0":{"version":"3.0","baseSeverity":"MEDIUM","baseScore":6.5,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L"}},{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV4_0":{"version":"4.0","baseSeverity":"MEDIUM","baseScore":4.8,"vectorString":"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1236","description":"Improper neutralization of formula elements in a CSV file","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"shortName":"jpcert","orgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateUpdated":"2026-02-04T07:04:04.422Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-04T15:55:19.585103Z","id":"CVE-2026-24447","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-04T15:55:26.690Z"}}]}}}