Cross-Site Scripting Vulnerability in MATCHA SNS by icz
CVE-2026-27787

5.1MEDIUM

Key Information:

Vendor

Icz Corporation

Status
Matcha Sns
Vendor
CVE Published:
8 April 2026

What is CVE-2026-27787?

A Cross-Site Scripting (XSS) vulnerability has been identified in MATCHA SNS version 1.3.9 and earlier versions. This security issue allows attackers to inject arbitrary scripts into the web pages accessed by users. If exploited, this vulnerability can execute malicious scripts in the browser of a user, potentially leading to data theft, session hijacking, or other unauthorized actions. Users are encouraged to update to the latest version to mitigate the risks associated with this vulnerability.

Affected Version(s)

MATCHA SNS 1.3.9 and earlier

References

https://oss.icz.co.jp/news/?p=1388
https://jvn.jp/en/jp/JVN33581068/

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

CVSS V3.0

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.