Vulnerability · Published Apr 8, 2026 · Assigned by jpcert
CVE-2026-27787
Medium 5.4
In plain English
A medium-severity cross-site scripting in MATCHA SNS from ICZ Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).
Severity (CVSS 3.0)5.4Medium
Exploit odds (30 days)0.1%top 96.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Cross-site scripting vulnerability exists in MATCHA SNS 1.3.9 and earlier. If this vulnerability is exploited, an arbitrary script may be executed on the web browser of the user who accessed the website using the product.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ICZ Corporation | MATCHA SNS | 1.3.9 and earlier |
Weakness: CWE-79 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N