Home/CVE/Operational restrictions bypass vulnerability in E-mail of Cybozu Garoon 4.0.0 to 5.0.2 allows a remote authenticated at
CVE

CVE-2021-20757

Operational restrictions bypass vulnerability in E-mail of Cybozu Garoon 4.0.0 to 5.0.2 allows a remote authenticated at

Operational restrictions bypass vulnerability in E-mail of Cybozu Garoon 4.0.0 to 5.0.2 allows a remote authenticated attacker to alter the data of Portal without the appropriate privilege.

MEDIUM · CVSS 4.3 EPSS 0.00193
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
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Affected Products & Versions

1
cybozu garoon>= 4.0.0 and <= 5.0.2
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Scoring & Timeline

4.3
MEDIUM · CVSS v3.1 · vultures@jpcert.or.jp
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD18 Aug 2021 · 06:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
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References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cs.cybozu.co.jp/2021/007206.htmlVendor Advisory
https://jvn.jp/en/jp/JVN54794245/index.htmlThird Party Advisory
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