CWE-603 (Use of Client-Side Authentication) documents a weakness type used across vulnerability databases and security assessments. Use the sections below for definition, context, and mapped CVEs.
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.
| Kind | Name | Class | Prevalence | OS / CPE |
|---|---|---|---|---|
| language | — | Not Language-Specific | Undetermined | — |
| technology | — | ICS/OT | Undetermined | — |
These CVEs are mapped to this weakness in this database and kept for traceability and search.
| CVE | Published | Summary |
|---|---|---|
| CVE-2026-42098 | 2026-05-19 | 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.… |
| CVE-2026-8830 | 2026-05-19 | A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side p… |
| CVE-2025-30042 | 2026-03-02 | 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 verificat… |
| CVE-2026-1363 | 2026-01-23 | 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 fro… |
| CVE-2025-64119 | 2026-01-02 | A vulnerability in Nuvation Battery Management System allows Authentication Bypass.This issue affects Battery Management System: through 2.3.9. |
| CVE-2025-61940 | 2025-12-02 | 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 chec… |
| CVE-2025-12868 | 2025-11-10 | 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… |
| CVE-2025-62650 | 2025-10-17 | The Restaurant Brands International (RBI) assistant platform through 2025-09-06 relies on client-side authentication for use of the diagnostic screen. |
| CVE-2025-62649 | 2025-10-17 | The Restaurant Brands International (RBI) assistant platform through 2025-09-06 relies on client-side authentication for submission of equipment orders. |
| CVE-2025-24517 | 2025-03-31 | 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 authentic… |
| CVE-2024-52327 | 2025-01-23 | 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-2024-45785 | 2024-10-25 | 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-2024-39375 | 2024-06-27 | TELSAT marKoni FM Transmitters are vulnerable to an attacker bypassing authentication and gaining administrator privileges. |
| CVE-2024-28627 | 2024-04-23 | An issue in Flipsnack v.18/03/2024 allows a local attacker to obtain sensitive information via the reader.gz.js file. |
| CVE-2022-3218 | 2022-09-19 | Due to a reliance on client-side authentication, the WiFi Mouse (Mouse Server) from Necta LLC's authentication mechanism is trivially bypassed, which can result in remote code execution. |
| CVE-2022-33139 | 2022-06-21 | 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 … |
| CVE-2021-43355 | 2022-01-21 | 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 th… |
| CVE-2020-27266 | 2021-01-19 | 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 prox… |
| CVE-2020-7591 | 2020-10-15 | 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 (p… |
| CVE-2020-6988 | 2020-03-16 | 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, unauthen… |
| Date | Name | Version | Importance | Comment |
|---|---|---|---|---|
| 2008-07-01 | Eric Dalci | 1.0 | — | updated Potential_Mitigations, Time_of_Introduction |
| 2008-09-08 | CWE Content Team | 1.0 | — | updated Description, Relationships, Observed_Example, Other_Notes, Taxonomy_Mappings |
| 2011-06-01 | CWE Content Team | 1.13 | — | updated Common_Consequences, Maintenance_Notes, Other_Notes |
| 2012-05-11 | CWE Content Team | 2.2 | — | updated References, Relationships |
| 2012-10-30 | CWE Content Team | 2.3 | — | updated Potential_Mitigations |
| 2014-07-30 | CWE Content Team | 2.8 | — | updated Relationships |
| 2017-05-03 | CWE Content Team | 2.11 | — | updated Relationships |
| 2017-11-08 | CWE Content Team | 3.0 | — | updated Modes_of_Introduction, Relationships, Taxonomy_Mappings |
| 2020-02-24 | CWE Content Team | 4.0 | — | updated Relationships |
| 2021-03-15 | CWE Content Team | 4.4 | — | updated Maintenance_Notes, Relationships |
| 2022-10-13 | CWE Content Team | 4.9 | — | updated Demonstrative_Examples, Observed_Examples, References, Relationships |
| 2023-01-31 | CWE Content Team | 4.10 | — | updated Applicable_Platforms, Relationships |
| 2023-04-27 | CWE Content Team | 4.11 | — | updated Relationships |
| 2023-06-29 | CWE Content Team | 4.12 | — | updated Mapping_Notes, Relationships |
| 2025-12-11 | CWE Content Team | 4.19 | — | updated Weakness_Ordinalities |