VYPR

CWE-603

Use of Client-Side Authentication

BaseDraft

Description

A client/server product performs authentication within client code but not in server code, allowing server-side authentication to be bypassed via a modified client that omits the authentication check.

Client-side authentication is extremely weak and may be breached easily. Any attacker may read the source code and reverse-engineer the authentication mechanism to access parts of the application which would otherwise be protected.

Hierarchy (View 1000)

Children

none

CVEs mapped to this weakness (22)

page 1 of 2
  • CVE-2026-1363CriJan 23, 2026
    risk 0.64cvss 9.8epss 0.01

    IAQS and I6 developed by JNC has a Client-Side Enforcement of Server-Side Security vulnerability, allowing unauthenticated remote attackers to gain administrator privileges by manipulating the web front-end.

  • CVE-2025-12868CriNov 10, 2025
    risk 0.64cvss 9.8epss 0.01

    New Site Server developed by CyberTutor has a Use of Client-Side Authentication vulnerability, allowing unauthenticated remote attackers to modify the frontend code to gain administrator privileges on the website.

  • CVE-2024-39375CriJun 27, 2024
    risk 0.64cvss 9.8epss 0.01

    TELSAT marKoni FM Transmitters are vulnerable to an attacker bypassing authentication and gaining administrator privileges.

  • CVE-2022-33139CriJun 21, 2022
    risk 0.64cvss 9.8epss 0.01

    A vulnerability has been identified in Cerberus DMS (All versions), Desigo CC (All versions), Desigo CC Compact (All versions), SIMATIC WinCC OA V3.16 (All versions in default configuration), SIMATIC WinCC OA V3.17 (All versions in non-default configuration), SIMATIC WinCC OA…

  • CVE-2017-7909CriMay 6, 2017
    risk 0.64cvss 9.8epss 0.03

    A Use of Client-Side Authentication issue was discovered in Advantech B+B SmartWorx MESR901 firmware versions 1.5.2 and prior. The web interface uses JavaScript to check client authentication and redirect unauthorized users. Attackers may intercept requests and bypass…

  • CVE-2025-64119CriJan 2, 2026
    risk 0.60cvss epss 0.00

    A vulnerability in Nuvation Battery Management System allows Authentication Bypass.This issue affects Battery Management System: through 2.3.9.

  • CVE-2026-42098HigMay 19, 2026
    risk 0.57cvss epss 0.00

    Sparx Enterprise Architect software has a security feature that limits user's actions to those specified in the role. An authenticated attacker can modify the Enterprise Architect client behavior (e.g. using a debugger) and log in as any other user or administrator - then it is…

  • CVE-2020-7591HigOct 15, 2020
    risk 0.57cvss 8.8epss 0.01

    A vulnerability has been identified in SIPORT MP (All versions < 3.2.1). Vulnerable versions of the device could allow an authenticated attacker to impersonate other users of the system and perform (potentially administrative) actions on behalf of those users if the single…

  • CVE-2026-40551HigApr 28, 2026
    risk 0.55cvss epss 0.00

    mpGabinet performs client-side authentication. An attacker with access to any application instance connected to the backend server can bypass the login verification process by manipulating the application binary and authenticate as an arbitrary user. This issue affects…

  • CVE-2025-61940HigDec 2, 2025
    risk 0.54cvss 8.3epss 0.00

    NMIS/BioDose V22.02 and previous versions rely on a common SQL Server user account to access data in the database. User access in the client application is restricted by a password authentication check in the client software but the underlying database connection always has…

  • CVE-2025-62650HigOct 17, 2025
    risk 0.54cvss 8.3epss 0.00

    The Restaurant Brands International (RBI) assistant platform through 2025-09-06 relies on client-side authentication for use of the diagnostic screen.

  • CVE-2025-30042HigMar 2, 2026
    risk 0.51cvss 7.8epss 0.00

    The CGM CLININET system provides smart card authentication; however, authentication is conducted locally on the client device, and, in reality, only the certificate number is used for access verification. As a result, possession of the certificate number alone is sufficient for…

  • CVE-2025-24517HigMar 31, 2025
    risk 0.49cvss 7.5epss 0.01

    Use of client-side authentication issue exists in CHOCO TEI WATCHER mini (IB-MCT001) all versions. If this issue is exploited, a remote attacker may obtain the product login password without authentication.

  • CVE-2024-45785HigOct 25, 2024
    risk 0.49cvss 7.5epss 0.00

    MUSASI version 3 contains an issue with use of client-side authentication. If this vulnerability is exploited, other users' credential and sensitive information may be retrieved.

  • CVE-2024-28627HigApr 23, 2024
    risk 0.49cvss 7.5epss 0.00

    An issue in Flipsnack v.18/03/2024 allows a local attacker to obtain sensitive information via the reader.gz.js file.

  • CVE-2020-6988HigMar 16, 2020
    risk 0.49cvss 7.5epss 0.04

    Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior, A remote, unauthenticated attacker can send a request from the RSLogix 500 software to the…

  • CVE-2021-43355HigJan 21, 2022
    risk 0.48cvss 7.3epss 0.01

    Fresenius Kabi Vigilant Software Suite (Mastermed Dashboard) version 2.0.1.3 allows user input to be validated on the client side without authentication by the server. The server should not rely on the correctness of the data because users might not support or block JavaScript…

  • CVE-2024-52327MedJan 23, 2025
    risk 0.42cvss 6.5epss 0.00

    The cloud service used by ECOVACS robot lawnmowers and vacuums allows authenticated attackers to bypass the PIN entry required to access the live video feed.

  • CVE-2020-27266MedJan 19, 2021
    risk 0.42cvss 6.5epss 0.01

    In SOOIL Developments Co., Ltd Diabecare RS, AnyDana-i and AnyDana-A, a client-side control vulnerability in the insulin pump and its AnyDana-i and AnyDana-A mobile applications allows physically proximate attackers to bypass user authentication checks via Bluetooth Low Energy.

  • CVE-2025-62649MedOct 17, 2025
    risk 0.38cvss 5.8epss 0.00

    The Restaurant Brands International (RBI) assistant platform through 2025-09-06 relies on client-side authentication for submission of equipment orders.