Cross-Site Scripting in Cybozu Garoon Messages Enables Password Reset

Publication date: 2026-02-02

Last updated on: 2026-02-19

Assigner: JPCERT/CC

Description

Cross-site scripting vulnerability exists in Message function of Cybozu Garoon 5.15.0 to 6.0.3, which may allow an attacker to reset arbitrary users’ passwords.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-02-02

Last Modified

2026-02-19

Generated

2026-07-06

AI Q&A

2026-02-02

EPSS Evaluated

2026-07-05

NVD

CVE-2026-22881

EUVD

EUVD-2026-5120

Affected Vendors & Products

Vendor	Product	Version / Range
cybozu	garoon	From 5.15.0 (inc) to 6.0.3 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is a cross-site scripting (XSS) issue in the Message function of Cybozu Garoon versions 5.15.0 to 6.0.3. It allows an attacker to exploit the XSS flaw to reset arbitrary users' passwords.

Impact Analysis

An attacker exploiting this vulnerability could reset passwords of arbitrary users, potentially gaining unauthorized access to user accounts and compromising the security of the affected system.

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