CVE-2023-27384

Operation restriction bypass vulnerability in MultiReport of Cybozu Garoon 5.15.0 allows a remote authenticated attacker to alter the data of MultiReport.

Published: 2023-05-22 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-27384 is rated Low Risk (31.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.52%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-27384

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.17% 0.52% +0.35%
2 2026-05-24 0.15% 0.17% +0.02%
3 2025-03-30 — 0.15% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-27384

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 1.4 [email protected]

Weakness enumeration for CVE-2023-27384

Affected software / configurations for CVE-2023-27384

Vendor Product Version Raw CPE
cybozu garoon 5.15.0 cpe:2.3:a:cybozu:garoon:5.15.0:*:*:*:*:*:*:*

References for CVE-2023-27384

URL Tags
https://cs.cybozu.co.jp/2023/007698.html Vendor Advisory
https://jvn.jp/en/jp/JVN41694426/ Third Party Advisory
cvelogic Threat Intelligence