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CVE-2020-5583

21
FAUCET Score

CVE-2020-5583 is a medium-severity access restriction bypass vulnerability affecting Cybozu Garoon versions 4.0.0 through 5.0.1. Remote authenticated attackers can exploit this flaw to gain unauthorized access to Multi-Report data. The attack requires user interaction, but once successful, it leads to high confidentiality impact. There is currently no public exploit code available, and the vulnerability has received minimal community discussion or media coverage, indicating low active exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.0.0, <= 5.0.1CPE matchmatch criteria
cpe:2.3:a:cybozu:garoon:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.03%
Probability of exploitation in next 30 days
EPSS Percentile
60.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0103 is in the 73rd percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / en/jp/JVN55497111/index.html
Third Party Advisory
kb.cybozu.support / article/36408
Vendor Advisory