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GHSA-f54h-78c9-c24h

Concrete CMS: OAuth 2.0 Authorization-Code Handler Bypasses Account Status

Source: GitHub Advisory Database (reviewed) Low CVE-2026-7887

Packages

EcosystemPackageAffectedFixed in
Packagist concrete5/concrete5 < 9.5.1 9.5.1

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.