What’s Vulnerable › Vulnerabilities

CVE-2013-3656

• Severity: medium (CVSS 5.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-07-20 · updated 2026-06-16
• Weakness: CWE-287

Description

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.

Affected products

• Cybozu Office: through 9.1.0

References

• http://jvn.jp/en/jp/JVN19491840/index.html
• http://jvndb.jvn.jp/jvndb/JVNDB-2013-000069
• http://products.cybozu.co.jp/office/ver9/download/update/fix910.html
• https://exchange.xforce.ibmcloud.com/vulnerabilities/85894
• http://jvn.jp/en/jp/JVN19491840/index.html
• http://jvndb.jvn.jp/jvndb/JVNDB-2013-000069
• http://products.cybozu.co.jp/office/ver9/download/update/fix910.html
• https://exchange.xforce.ibmcloud.com/vulnerabilities/85894

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