Missing authorization in Cybozu, Inc. Cybozu Garoon
Priority LOW 21CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-862.
Summary
Operation restriction bypass vulnerability in Message and Bulletin of Cybozu Garoon 4.6.0 to 5.9.2 allows a remote authenticated attacker to alter the data of Message and/or Bulletin.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00513 43rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cybozu, Inc. | Cybozu Garoon | 4.6.0 to 5.9.2 | — | No fix listed | CNA |
- Cybozu Garoon VendorCybozu, Inc. Affected 4.6.0 to 5.9.2 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cybozu:garoon:*:*:*:*:*:*:*:* | 4.6.0 – 5.9.2 | Vulnerable | Cybozu, Inc. |
- cpe:2.3:a:cybozu:garoon:*:*:*:*:*:*:*:* Versions 4.6.0 – 5.9.2 Vulnerable ·Cybozu, Inc.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-27304
- 2026-10-03 Alias added: GHSA-v657-8crh-gpm6
References
More Cybozu, Inc. Garoon vulnerabilities
- TI-2014-01555 The CGI component in Cybozu Garoon 3.1.0 through 3.7 SP3 allows remote attackers to… CVSS 2.0HIGH 10.0
- TI-2016-01117 Cybozu Garoon before 4.2.2 allows remote attackers to bypass login authentication via vectors related to API use. CVSS 3.0CRITICAL 9.8
- TI-2019-04241 Cybozu Garoon 4.2.4 to 4.10.1 allow remote attackers to obtain the users' credential… CVSS 3.0CRITICAL 9.8
- TI-2024-20773 Cross-site scripting in Cybozu, Inc. Cybozu Garoon CVSS 3.1CRITICAL 9.0
- TI-2018-00487 SQL injection in Cybozu, Inc. Cybozu Garoon CVSS 3.0HIGH 8.8
- TI-2016-06555 SQL injection in Cybozu, Inc. Cybozu Garoon CVSS 3.0HIGH 8.8
Sources
- CVE-2023-27304 · CVE Program
- CVE-2023-27304 · NVD
- FIRST EPSS
- GHSA-v657-8crh-gpm6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences