Enviar #877851: ming-soft MCMS <=5.5.0 SSRFinformación

Títuloming-soft MCMS <=5.5.0 SSRF
DescripciónThe UEditor "catch image" feature fetches each URL supplied in a request parameter server-side and passes the bytes into the upload pipeline. A URL-validation routine restricts the scheme to http/https and rejects hosts that resolve to internal IP addresses, but the check is performed against the host string in isolation and is bypassable via DNS rebinding and the time-of-check / time-of-use gap between validation and the subsequent download. On deployments where the web-facing editor route is enabled (ms.basic.upload.enableWeb), the endpoint is reachable without authentication, so a remote attacker can make the MCMS server issue HTTP requests to attacker-chosen destinations, including internal services once the IP check is bypassed.
Fuente⚠️ https://github.com/ming-soft/MCMS/issues/108
Usuario
 Ana10gy (UID 93358)
Sumisión2026-07-02 11:49 (hace 2 meses)
Moderación2026-08-18 20:36 (2 months later)
EstadoDuplicado
Entrada de VulDB353831 [mingSoft MCMS hasta 5.5.0 Editor Endpoint BaseAction.java catchImage catchimage escalada de privilegios]
Puntos0

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