CVE-2026-8350
Concrete CMS 9.5.0 and below is vulnerable to missing authorization in the bulk_user_assignment.php which can lead to privilege escalation to Administrative Group. Any authenticated user with access to the bulk user assignment dashboard page can add any user email to any group and can remove legitimate admins. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.5 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks Vincent55 for reporting.
- Affected products
- Concrete Cms
- Concretecms Concrete Cms
- ≤ 9.5.0
- CVSS 3.1
- 8.8 HIGH
- EPSS
- 0.3% (22th percentile)
- Weakness
- CWE-863
- NVD status
- Analyzed
- Published
- 2026-05-21
- Attack patterns
- CAPEC-1
CVE-2026-8350 at NVD
No indexed exploits for CVE-2026-8350 yet
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No exploit for CVE-2026-8350 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.