Cybozu Office 9.1.0 and earlier does not properly manage sessions, which allows remote…
Priority LOW 30CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
Cybozu Office 9.1.0 and earlier does not properly manage sessions, which allows remote attackers to bypass authentication by leveraging knowledge of a login URL.
Why it matters now
EPSS 0.01969 80th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cybozu:cybozu_office:*:*:*:*:*:*:*:* | up to 9.1.0 | Vulnerable | Cybozu, Inc. |
- cpe:2.3:a:cybozu:cybozu_office:*:*:*:*:*:*:*:* Versions up to 9.1.0 Vulnerable ·Cybozu, Inc.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-3656
- 2026-10-03 Alias added: GHSA-3h8r-6x68-6v9m
References
More Cybozu, Inc. Cybozu Office vulnerabilities
- TI-2008-06433 Cross-site request forgery (CSRF) vulnerability in Cybozu Office 6, Cybozu Dezie before… CVSS 2.0MEDIUM 6.8
- TI-2013-02856 Cross-site request forgery (CSRF) vulnerability in Cybozu Office before 8.1.6 and 9.x… CVSS 2.0MEDIUM 6.8
- TI-2013-02054 Cross-site request forgery (CSRF) vulnerability in Cybozu Office before 8.1.6 and 9.x… CVSS 2.0MEDIUM 6.8
- TI-2010-01945 Cybozu Office 7 Ktai and Dotsales do not properly restrict access to the login page… CVSS 2.0MEDIUM 5.8
- TI-2006-04340 Unspecified vulnerability in Cybozu Office 6.5 Build 1.2 for Windows allows remote… CVSS 2.0MEDIUM 5.0
- TI-2006-04338 Multiple directory traversal vulnerabilities in Cybozu Office before 6.6 Build 1.3 and… CVSS 2.0MEDIUM 4.0
Sources
- CVE-2013-3656 · CVE Program
- CVE-2013-3656 · NVD
- FIRST EPSS
- GHSA-3h8r-6x68-6v9m · 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