Auth bypass in Stylefeng Guns
CVE-2026-92601
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (33.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/stylefeng/Guns/issues/119 (issue-tracking)
- github.com/stylefeng/Guns (product)
- github.com/stylefeng/Guns/blob/2a12947733945d5c06197d99ecaa77d7f2b0aeba/src/mai… (technical-description)
- repo1.maven.org/maven2/com/javaguns/roses/system-business-portal/8.3.5/system-b… (technical-description)
- www.vulncheck.com/advisories/guns-through-8.3.5-improper-access-control-via-sys… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-92601?
- CVE-2026-92601 is a medium-severity vulnerability in Stylefeng Guns, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-09-16.
- How severe is CVE-2026-92601?
- Medium severity. CVSS v3 base score is 6.5 out of 10.