Auth bypass in B3log Symphony
CVE-2026-110105
B3log Symphony through 3.6.4 contains a missing authorization vulnerability that allows unauthenticated attackers to reach admin routes because PermissionMidware.check permits routes lacking permission.rule.url entries. Attackers can request /admin/report/ignore/{reportId}, /admin/tags/remove-unused, or /admin/user/{userId}/init-point to ignore reports, delete unused tags, or grant points without audit logging.
Vulnerability class: Broken Access Control
Published .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/b3log-symphony-admin-endpoints-missing-author… (third-party-advisory)
- github.com/88250/symphony/blob/827a7dd8b74316aa62f370f893a8382a8b45ba0f/src/mai… (technical-description)
- github.com/88250/symphony/blob/827a7dd8b74316aa62f370f893a8382a8b45ba0f/src/mai… (technical-description)
- github.com/88250/symphony (product)
- www.vulncheck.com/advisories/b3log-symphony-through-3.6.4-missing-authorization… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110105?
- CVE-2026-110105 is a medium-severity vulnerability in B3log Symphony, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-10-13.
- How severe is CVE-2026-110105?
- Medium severity. CVSS v3 base score is 5.3 out of 10.