Medium severity · published Sep 16, 2026
CVE-2026-92601
Guns through 8.3.5 Improper Access Control via SysNoticeController
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
Guns through 8.3.5 contains an improper access control vulnerability in SysNoticeController where requiredPermission defaults to false and is not overridden by any action methods. Authenticated users without assigned roles can exploit this to create, edit, delete, publish and retract system-wide notices affecting arbitrary users and departments.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GU
Guns · stylefeng
through 8.3.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-92601
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-92601
github.com
https://github.com/stylefeng/Guns
github.com
https://github.com/stylefeng/Guns/blob/2a12947733945d5c06197d99ecaa77d7f2b0aeba/src/main/java/cn/stylefeng/guns/core/security/TokenAndPermissionInterceptor.java#L110-L119
github.com
https://github.com/stylefeng/Guns/issues/119
repo1.maven.org
https://repo1.maven.org/maven2/com/javaguns/roses/system-business-portal/8.3.5/system-business-portal-8.3.5-sources.jar
www.vulncheck.com
https://www.vulncheck.com/advisories/guns-through-8.3.5-improper-access-control-via-sysnoticecontroller
More from Guns
6.5
CVE-2026-92600
Guns through 8.3.5 Information Disclosure via Missing Permission Check