Arbitrary file upload in Icz Matcha Invoice
CVE-2026-33273
Unrestricted upload of file with dangerous type issue exists in MATCHA INVOICE 2.6.6 and earlier. If this vulnerability is exploited, an arbitrary file may be created by an administrator of the product. As a result, arbitrary code may be executed on the server.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (32.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
- Icz Matcha Invoice
- Icz Corporation Matcha Invoice — versions 2.6.6 and earlier
Weakness classification (CWE)
References
- oss.icz.co.jp/news/ (Vendor Advisory)
- jvn.jp/en/jp/JVN33581068/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2026-33273?
- CVE-2026-33273 is a high-severity vulnerability in Icz Matcha Invoice, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2026-04-08.
- How severe is CVE-2026-33273?
- High severity. CVSS v3 base score is 7.2 out of 10.