GitHub Advisoryadvisory · Packagist

GHSA-f54h-78c9-c24h Concrete CMS: OAuth 2.0 Authorization-Code Handler Bypasses Account Status

LOW Published 2026-05-22 Modified 2026-06-24 Official page ↗
Aliases
CVE-2026-7887
Ecosystem
Packagist
Packages
concrete5/concrete5
Severity
Low
CVSS 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
Weaknesses
CWE-1287
Reviewed
2026-06-24

Affected packages

• Packagist concrete5/concrete5: < 9.5.1 → fixed in 9.5.1

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.

Related

Alias · CVE (1)

  • CVE-2026-7887 For Concrete CMS 9.5.0 and below, OAuth 2.0 Authorization-Code Handler Bypasses Account Status. vulnerability

Weakness · CWE (1)

  • CWE-1287 Improper Validation of Specified Type of Input weakness

References