CVE-2026-103396 (GCVE-0-2026-103396)

Vulnerability from cvelistv5 – Published: 2026-09-30 14:48 – Updated: 2026-09-30 16:57
VLAI
Title
bbs-go through 4.4.6 Incorrect Authorization via /api/admin/user/synccount
Summary
bbs-go through 4.4.6 contains a permission bypass vulnerability in the AdminMiddleware authorization logic where the read-only dashboard.user.view permission rule matches the /api/admin/user/synccount endpoint before the intended dashboard.user.update rule. Authenticated users with only view permissions can call the synccount endpoint to trigger expensive full-table user recounts and cache invalidations, causing denial of service through repeated concurrent database operations.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 16:57 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6046 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
mlogclub bbs-go Affected: 0 , ≤ 4.4.6 (semver)
    cpe:2.3:a:bbs-go_project:bbs-go:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-17 00:00
Credits
George Chen
Show details on NVD website
To clipboard 

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