Medium severity · published Feb 2, 2026
CVE-2026-22881
Cross-site scripting vulnerability exists in Message function of Cybozu Garoon 5.15.0 to 6.0.3, which may allow an attacker to reset arbitrary users’ passwords
5.4
CVSS
0.3%
EPSS
No
On KEV
Description
Cross-site scripting vulnerability exists in Message function of Cybozu Garoon 5.15.0 to 6.0.3, which may allow an attacker to reset arbitrary users’ passwords.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CG
Cybozu Garoon · Cybozu, Inc.
5.15.0 to 6.0.3 · source: vendor
GA
Garoon · Cybozu
5.15.0 before 6.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-22881
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-22881
Third Party Advisory
https://jvn.jp/en/jp/JVN35265756/
Vendor Advisory
https://kb.cybozu.support/article/39084/
More from Cybozu Garoon
7.5
CVE-2026-22888
Improper input verification issue exists in Cybozu Garoon 5.0.0 to 6.0.3, which may lead to unauthorized alteration of portal settings, potentially blocking access to the product
6.8
CVE-2026-57279
Cybozu Garoon contains a cross-site scripting vulnerability
6.1
CVE-2026-20711
Cross-site scripting vulnerability exists in E-mail function of Cybozu Garoon 5.0.0 to 6.0.3, which may allow an attacker to reset arbitrary users’ passwords