CVE-2026-7887
For Concrete CMS 9.5.0 and below, OAuth 2.0 Authorization-Code Handler Bypasses Account Status. A user with uIsActive=0 (suspended, banned, terminated employee) can still authenticate via OAuth and receive valid API tokens. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N. Thanks 0x4c616e for reporting.
- Affected products
- Concrete Cms
- Concretecms Concrete Cms
- < 9.5.1
- Fix
- Available
- CVSS 3.1
- 6.4 MEDIUM
- EPSS
- 0.2% (7th percentile)
- Weakness
- CWE-1287
- NVD status
- Analyzed
- Published
- 2026-05-21
- Attack patterns
- CAPEC-115
CVE-2026-7887 at NVD
No indexed exploits for CVE-2026-7887 yet
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No exploit for CVE-2026-7887 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.