CVE-2026-92601: Auth Bypass (CVSS 6.5)

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.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Other References

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

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-92601? +

CVE-2026-92601 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2026-92601? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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