CVE-2026-24447If a malformed data is input to the affected product, a CSV file downloaded from the affected product may contain such malformed data.…
- 4.8MediumCVSS base score
- 0.25%Exploitation in 30 daysEPSS · top 84% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By jpcert
- 6 days later
· 6 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| jpcertCNA (assigner) | 4.0 | Medium4.8 | 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 |
| jpcertCNA (assigner) | 3.0 | Medium6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L |
| NVDNVD · Deferred | 4.0 | Medium4.8 | 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 |
- EPSS (exploitation in 30 days)
- 0.25% · top 84% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.8.
Affected products
Six Apart Ltd. · Movable Type (Software Edition)
- affected 9.0.4 to 9.0.5 (9.0 series)
- affected 8.8.0 to 8.8.1 (8.8 series)
- affected 8.0.2 to 8.0.8 (8.0 series)
Six Apart Ltd. · Movable Type Advanced (Software Edition)
- affected 9.0.4 to 9.0.5 (9.0 series)
- affected 8.8.0 to 8.8.1 (8.8 series)
- affected 8.0.2 to 8.0.8 (8.0 series)
Six Apart Ltd. · Movable Type Premium (Software Edition)
- affected 9.0.4 (MTP 9.0 series)
- affected 2.13 and earlier (MTP 2 series)
Six Apart Ltd. · Movable Type Premium (Advanced Edition) (Software Edition)
- affected 9.0.4 (MTP 9.0 series)
- affected 2.13 and earlier (MTP 2 series)
Six Apart Ltd. · Movable Type (Cloud Edition)
- affected 9.0.5 (9 series)
- affected 8.8.1 (8 series)
Six Apart Ltd. · Movable Type Premium (Cloud Edition)
- affected 9.0.5 (9 series)
- affected 2.12 (MTP 2 series)
References
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-5509 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-24447)Record last updated .