SmsForwarder through 3.5.0 Missing Authentication in HTTP Server Remote Control API

Advisories

SmsForwarder through 3.5.0 Missing Authentication in HTTP Server Remote Control API

Severity: high
Date: 10/14/2026
Affecting: SmsForwarder <= 3.5.0
CVE: CVE-2026-110618
CWE: CWE-306 Missing Authentication for Critical Function
CVSS: 8.6
CVSS V4 Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
References: https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/H1ue_ahiMe
https://github.com/pppscn/SmsForwarder/blob/v3.5.0/app/src/main/kotlin/cn/ppps/forwarder/utils/HttpServerUtils.kt#L35-L38
https://github.com/pppscn/SmsForwarder/blob/v3.5.0/app/src/main/kotlin/cn/ppps/forwarder/server/component/AppMessageConverter.kt#L93-L96
https://github.com/pppscn/SmsForwarder
Credit: hieuPenguinnn
Description: SmsForwarder through 3.5.0 contains a missing authentication vulnerability in its AndServer HTTP server that allows unauthenticated network attackers to invoke remote-control APIs. Attackers can call the default-enabled endpoints to read SMS, call logs and contacts, send SMS, and export or overwrite configuration via the clone API.

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