CVE-2026-10711: CafePlus Authentication Bypass Vulnerability

CVE-2026-10711 Overview

CVE-2026-10711 is a missing authentication for critical function vulnerability [CWE-306] affecting AKIN Software Computer Import Export Industry and Trade Ltd's CafePlus product. The flaw allows attackers on an adjacent network to access functionality that is not properly constrained by access control lists (ACLs). Affected versions span from 12.05.03 before 12.05.04. An attacker exploiting this issue can compromise confidentiality, integrity, and availability of the application without prior authentication or user interaction.

Critical Impact
Adjacent-network attackers can invoke restricted CafePlus functions without authentication, enabling full compromise of application data and operations.

Affected Products

AKIN Software CafePlus version 12.05.03
AKIN Software CafePlus versions after 12.05.03 and before 12.05.04
Deployments exposing CafePlus services on local or adjacent network segments

Discovery Timeline

2026-06-23 - CVE-2026-10711 published to the National Vulnerability Database (NVD)
2026-06-23 - Last updated in NVD database

Technical Details for CVE-2026-10711

Vulnerability Analysis

The vulnerability stems from CafePlus exposing critical functions without enforcing authentication checks. An attacker reachable on the same adjacent network segment can issue requests directly to these functions and bypass the intended access control layer. Because the attack vector is adjacent network, the attacker must share a logical broadcast domain or equivalent network proximity with the target. The flaw does not require credentials, user interaction, or social engineering, which lowers the operational barrier for exploitation in shared LAN, Wi-Fi, or VLAN environments common to cafés, hospitality venues, and small business deployments where CafePlus is typically installed.

Root Cause

The root cause is classified under [CWE-306] Missing Authentication for Critical Function. CafePlus exposes sensitive operations through interfaces that fail to validate the identity of the caller before executing privileged actions. Access control lists exist but are not consistently applied to all critical endpoints, leaving privileged functionality reachable without credentials.

Attack Vector

An attacker on the adjacent network sends crafted requests to the unauthenticated CafePlus endpoints. Because no session, token, or credential validation is performed, the requests execute with the privileges of the exposed function. This permits reading, modifying, or destroying point-of-sale data, configuration, and operational state. No verified public proof-of-concept exists at the time of publication. Refer to the Siber Güvenlik Notification TR-26-0428 for additional vendor-coordinated details.

Detection Methods for CVE-2026-10711

Indicators of Compromise

Unexpected administrative or configuration changes within CafePlus that cannot be tied to a logged-in operator session.
Network connections to CafePlus service ports originating from devices that are not authorized point-of-sale terminals.
Anomalous transaction records, refunds, or inventory adjustments occurring outside of business hours.

Detection Strategies

Inspect application and operating system logs for invocations of CafePlus functions that lack a corresponding authenticated user context.
Deploy network detection signatures that flag direct calls to CafePlus management endpoints from non-whitelisted hosts on the LAN segment.
Correlate CafePlus database changes with authenticated session activity to surface unauthenticated writes.

Monitoring Recommendations

Continuously monitor CafePlus host processes, child process creation, and outbound connections for behavioral anomalies.
Capture and review LAN traffic to CafePlus systems, focusing on devices that should not communicate with the application.
Alert on any new device joining the network segment that hosts CafePlus point-of-sale terminals.

How to Mitigate CVE-2026-10711

Immediate Actions Required

Upgrade CafePlus to version 12.05.04 or later, which addresses the missing authentication condition.
Restrict network access to CafePlus systems using firewall rules or VLAN segmentation so only authorized terminals can reach the application.
Audit CafePlus configuration, user accounts, and recent transactions for signs of unauthorized modification.

Patch Information

AKIN Software resolves the issue in CafePlus 12.05.04. Operators running 12.05.03 should plan an immediate upgrade. Coordinated disclosure information is published in the Siber Güvenlik Notification TR-26-0428.

Workarounds

Place CafePlus terminals on an isolated management VLAN with strict ACLs that block all unauthorized hosts.
Disable wireless access for the network segment hosting CafePlus, or enforce WPA3-Enterprise with client certificate authentication.
Use host-based firewalls on CafePlus servers to permit inbound connections only from approved point-of-sale clients.

bash

# Configuration example: restrict CafePlus access to approved terminals only
# Replace interface and IP ranges with your environment values
iptables -A INPUT -p tcp --dport 8080 -s 192.0.2.0/28 -j ACCEPT
iptables -A INPUT -p tcp --dport 8080 -j DROP