CVE-2026-110618: SmsForwarder through 3.5.0 Missing Authentication in HTTP Server Remote Control API

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-14 · updated 2026-10-16
Weakness: CWE-306

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.

Affected products

pppscn SmsForwarder: through 3.5.0

References

https://github.com/pppscn/SmsForwarder
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/blob/v3.5.0/app/src/main/kotlin/cn/ppps/forwarder/utils/HttpServerUtils.kt#L35-L38
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/H1ue_ahiMe
https://www.vulncheck.com/advisories/smsforwarder-through-3.5.0-missing-authentication-in-http-server-remote-control-api

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