Vulnerability Description
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.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-7887?
CVE-2026-7887 is a documented vulnerability. 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 re...
How severe is CVE-2026-7887?
CVSS scoring is not yet available for CVE-2026-7887. Check NVD for updates.
Is there a patch for CVE-2026-7887?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.