Vulnerabilities
Vulnerable Software

Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.3%
CVSS Severity
CVSS v3 Score 6.4
Products affected by CVE-2026-7887


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