Vulnerability details

CVE-2026-92601

stylefeng Guns

Guns through 8.3.5 Improper Access Control via SysNoticeController

CVSS 4.0

7.1High

Official 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 scores

Score	Version	Source	Vector
7.1High	4.0	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N`
6.5Medium	3.1	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N`

Affected products

Vendor	Product	Versions	Source
stylefeng	Guns	v ≤ 8.3.5	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/stylefeng/Guns product
https://github.com/stylefeng/Guns/blob/2a12947733945d5c06197d99ecaa77d7f2b0aeba/src/main/java/cn/stylefeng/guns/core/security/TokenAndPermissionInterceptor.java#L110-L119 technical-description
https://repo1.maven.org/maven2/com/javaguns/roses/system-business-portal/8.3.5/system-business-portal-8.3.5-sources.jar technical-description
https://www.vulncheck.com/advisories/guns-through-8.3.5-improper-access-control-via-sysnoticecontroller third-party-advisory
https://github.com/stylefeng/Guns/issues/119 issue-tracking

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Details

Published: 2026-09-16
Last updated: 2026-09-24
State: Published
Assigner (CNA): VulnCheck

Exploit prediction (EPSS)

0.38%

Probability of exploitation in 30 days

33.1%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: Proof of concept
Technical impact: Partial

Weaknesses (CWE)

CWE-862
Missing Authorization