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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Icz
  • Matchasns

No data.

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References
Link Providers
https://jvn.jp/en/jp/JVN33581068/ cve-icon cve-icon
https://oss.icz.co.jp/news/?p=1388 cve-icon cve-icon
History

Thu, 09 Apr 2026 08:30:00 +0000

Type Values Removed Values Added
First Time appeared Icz
Icz matchasns
Vendors & Products Icz
Icz matchasns

Wed, 08 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
Title Cross‑Site Scripting Vulnerability in MATCHA SNS Allowing Arbitrary Script Execution

Wed, 08 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 08 Apr 2026 05:30:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-79
References
Metrics cvssV3_0

{'score': 5.4, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: jpcert

Published:

Updated: 2026-04-08T13:55:07.158Z

Reserved: 2026-04-03T04:29:15.069Z

Link: CVE-2026-27787

cve-icon Vulnrichment

Updated: 2026-04-08T13:55:03.362Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-08T06:16:28.480

Modified: 2026-04-08T21:26:35.910

Link: CVE-2026-27787

cve-icon Redhat

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