CVE-2026-18424

Concrete CMS 9.0.0 to 9.5.2 is vulnerable to Server-Side Request Forgery iremote file import via cross-port reuse of a host's validated DNS pin. When multiple remote URLs share the same host, only the first ValidatedRemoteUrl is retained and reused for every later URL with that host. A...

PT-2026-92415

Concrete CMS 9.0.0 to 9.5.2 is vulnerable to Server-Side Request Forgery iremote file import via cross-port reuse of a host's validated DNS pin. When multiple remote URLs share the same host, only the first ValidatedRemoteUrl is retained and reused for every later URL with that host. A...